How to Disassemble and Reassemble a Glock 43 – Step-By-Step Full Breakdown

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By Jason Schaller Former FFL holder and Gunsmith with over 10 years of professional experience Chief Instructor @ Freedom Crew University Creator of The Rogue Banshee Podcast Host – For The Love of Guns and The Undependant Podcast

Top-down view of Glock 43 pistol disassembled for cleaning with tools, lubricant, and a bore inspection image highlighting possible rust, overlaid with bold yellow and red warning-style text asking “Dirty Glock 43?” and “Is That Rust?”
Is your Glock 43 hiding rust? Learn how to spot it and deep clean your firearm the right way.
Home » Everything » How to Disassemble and Reassemble a Glock 43 – Step-By-Step Full Breakdown

The Glock 43 isn’t complicated — but knowing how every part fits together matters. This guide was written by Jason Schaller, a 10 year FFL holder and gunsmith as well as a chief instructor at Freedom Crew University. Let’s dig into how to disassemble and reassemble a Glock 43!

This compact 9mm is built to run hard and carry easy — but when it’s time to break it down, a field strip won’t cut it. This guide walks through the full disassembly and reassembly of the Glock 43 slide, frame, and all internal components. Every pin, spring, and part is covered.

We’re not calling this a cleaning guide. This is about understanding the platform, fixing issues, and learning how every piece fits together. Whether it’s for inspection, replacement, or upgrades, this is your no-fluff, no-guesswork teardown walkthrough.

🔗 For common Glock issues, check the full Glock Troubleshooting Guide.


TL;DR – How To Disassemble And Reassemble A Glock 43

  • Learn how to take apart your Glock 43 safely
  • Remove and clean every part of the slide and frame
  • Put everything back the right way
  • Avoid common mistakes

Tools You’ll Need To Disassemble and Reassemble A Glock 43

All tools listed here are trusted in real-world shop use and Glock maintenance training. Jason uses them during every full teardown and inspection.

Tools Jason Uses for Glock Maintenance. Some at the bench and some in the field.

How to Field Strip a Glock 43

Step 1: Start The Field Strip Process Of The Glock 43

  1. Remove the magazine.
  2. Rack the slide and lock it to the rear using the slide stop lever.
  3. Visually and physically inspect the chamber to confirm it is clear.
  4. Release the slide forward and press the trigger in a safe direction to release striker tension.
  5. Grasp the slide and pull it slightly to the rear (about 1/8″). While holding it there, pull down both sides of the takedown tabs.
  6. Let the slide move forward off the frame. Set the frame aside.

Step 2: How To Remove The Glock 43 Recoil Spring

  1. Place your thumb against the rear of the recoil spring assembly.
  2. Slightly compress the spring and lift it upward and rearward to remove it from its seat.
  3. Set it aside.

Step 3: How To Remove The Glock 43 Barrel

  1. Lift the barrel upward from the chamber area.
  2. Slide it out toward the rear of the slide.
  3. Set the barrel aside for inspection or cleaning.

What to Inspect During The Glock 43 Field Strip Process

  • Barrel:
    • Chamber & Feed Ramp: Look for carbon build-up, pitting, or deformation.
    • Crown: Should be clean, undamaged, and concentric. Chips or nicks here can affect accuracy.
    • Lugs: Check for cracks, rounding, or peening.
  • Recoil Spring Assembly:
    • Check for binding, rust, or loose guide rod ends.
    • The spring should be firm and evenly coiled — no kinks or deformation.
  • Slide:
    • Look at the rails, striker channel, and breech face for fouling, dents, or wear.
    • Ensure the firing pin safety moves freely and resets under tension.
  • Frame:
    • Inspect the rails, locking block, and trigger mechanism for wear, fouling, or missing parts.
    • Look for any cracks, especially around the front locking block and rear rails.

⚠️ Safety Tips During Field Strip

Always verify the firearm is unloaded
– Visually and physically inspect the chamber before proceeding

Never skip striker tension release
– The trigger must be pressed to allow slide removal

Control spring tension when removing the recoil spring
– The assembly can slip or bounce if released carelessly

Set the slide and frame on soft, stable surfaces
– Prevents damage to contact points or sights

Keep the muzzle pointed in a safe direction at all times
– Even during disassembly, treat every handling step with car


How to Disassemble the Glock 43 Slide

Step 1: How To Remove The Glock 43 Slide Plate
⚠️ Warning: Wear eye protection. The striker assembly and extractor depressor plunger are under spring tension.

  1. With the slide upside down and muzzle facing away, insert a Glock tool or punch into the space behind the striker sleeve.
    • Inspect for: Smooth movement; make sure it’s not cracked or sticking
  2. Gently press forward on the plastic spacer sleeve to relieve tension on the slide cover plate.
  3. While maintaining pressure, use your thumb to carefully slide the cover plate downward and off.
  4. Control the striker and extractor depressor plunger to prevent them from launching.
  5. Remove the cover plate and set it aside.
    • Inspect for: Debris or grit on the cover plate and channel.

Step 2: How To Remove The Glock 43 Striker

  1. With the cover plate removed, grip the striker assembly and slide it straight out the rear of the slide.
    • Inspect for: Rust, pitting, carbon on the tip, and bent spring or cracked cups.
    • Inspect for: Dirt or carbon in the spring area, cracks on the cups, rust or deformation on the striker tip.
  2. Keep it in one piece unless further disassembly is needed.

Step 3: How To Remove The Glock 43 Extractor Depressor Plunger (EDP) Assembly

  1. With the slide still inverted, locate the lower channel containing the extractor depressor plunger, spring, and spring-loaded bearing.
  2. Tilt the slide slightly or tap gently to remove the EDP assembly.
  3. Use caution — the spring may be under tension and can launch unexpectedly.
  4. Set the entire EDP assembly aside as one unit.
    • Inspect for: Spring compression, rust, and secure seating.

Step 4: How To Remove The Glock 43 Firing Pin Safety and Extractor

  1. Using a punch or tool, press the firing pin safety inward to release tension on the extractor.
  2. While holding the safety down, gently tilt or tap the slide to allow the extractor to fall free from the slide.
    • Inspect for: Sharp edges, cracks, or fouling on the claw.
  3. Release the firing pin safety. If needed, remove the safety and its spring by tilting the slide and guiding them out of the housing.
    • Inspect for: Surface rust, clean return action, and no scoring on the plunger.
  4. Set both components aside for inspection or replacement.

At this point, the slide is fully stripped to its base housing. This level of disassembly allows:

  • Inspection of wear on critical parts (striker lugs, extractor claw)
  • Cleaning of the striker channel and safety plunger
  • Replacement of worn springs or components

Optional Step 5: How To Remove The Glock 43 Sights
Removing the sights is not part of standard disassembly but may be necessary for upgrades or refinishing.

Rear Sight Removal:

  1. Secure the slide in a sight pusher tool designed for Glock slides.
  2. Turn the tool’s adjustment knob to push the rear sight laterally out of its dovetail.
  3. If using a non-marring punch and hammer, tap carefully from one side, using a sight block to avoid damaging the slide.

Front Sight Removal:

  1. Turn the slide upside down to access the underside of the front sight post.
  2. Use a 3/16″ hex nut driver or Glock front sight tool to remove the screw holding the sight.
  3. Hold the front sight from above to prevent it from falling once the screw is released.

Always inspect sight cuts for burrs or debris before reinstalling or replacing sights.

How to Disassemble the Glock 43 Striker Assembly

  1. Place the striker assembly backwards into the slide. The slide will act as a jig to disassemble the striker.
  2. Hold the striker assembly with the spring pointing away from you.
    • Inspect for: Chipped or uneven cups, weak spring tension.
  3. Compress the spring slightly and slide off the spring cups (two half-moon plastic retainers).
  4. Carefully release the spring tension and slide off the spring and spacer sleeve.
  5. Inspect the striker for wear or chipping, especially at the sear engagement surfaces.
    • Inspect for: Dirt, carbon or rust on the striker or spring, cracks on the cups, rust or deformation on the striker tip.
  6. Clean the striker channel and components if reusing.

Inspection points:

  • Sear Engagement Surfaces: Look for rounding, chips, or burrs that could cause light primer strikes or improper reset.
  • Striker Tip: Should be clean and sharply defined. Pitting or peening here affects ignition.
  • Spring Cups: Check for cracks, deformation, or uneven wear.
  • Striker Spring: Ensure there are no kinks, corrosion, or uneven compression.
  • Spacer Sleeve: Look for cracks, swelling, or distortion.

Set parts aside for reassembly.


How To Disassemble The Glock 43 Extractor Depressor Plunger Disassembly

  1. Hold the extractor depressor plunger assembly by the metal plunger body.
  2. Twist the spring slightly and remove the spring-loaded bearing from the back end.
  3. Slide off the spring.
  4. Inspect all parts and clean as needed.

Inspection points:

  • Plunger Body: Should be free of dents, burrs, or corrosion.
  • Spring: Must retain tension. Replace if rusted, or soft.
  • Spring-Loaded Bearing: Inspect for deformation.

Clean all components and lay them out in order for reassembly.


What Tools To Use For The Glock 43 Slide Disassembly

Glock Armorer’s Tool or 3/32″ punch
– Used to depress the striker sleeve and firing pin safety

Thumb or bench pressure
– Required to slide the cover plate off under spring tension

Non-marring punch or sight tool
– For rear sight removal, if applicable

3/16″ hex driver or Glock front sight tool
– Needed for front sight removal

Parts tray or magnetic mat
– Keeps springs, striker, and EDP parts organized


⚠️ Safety Tips During The Glock 43 Slide Disassembly

Wear eye protection
– The striker and EDP assemblies are spring-loaded and can eject forcefully

Keep your thumb over the backplate
– Control parts as the cover plate slides off

Never pry with sharp tools
– Use proper punches and pressure points to avoid damaging internal channels

Inspect parts as you go
– Don’t wait until reassembly to catch a cracked cup or weakened spring

Support the slide properly
– When removing sights or internal components, use a bench block or padded surface


How to Disassemble the Glock 43 Striker Assembly

With all components cleaned and inspected, it’s time to reassemble the slide. These steps follow Glock’s official armorer guidelines and ensure correct timing, spring tension, and part alignment.


Step 1: How To Reassemble The Glock 43 Striker Assembly

  1. Place the striker upside down into the slide’s striker channel cut
    • Rotate the striker lug slightly to one side. This holds the assembly in place while you work.
  2. Slide the spacer sleeve onto the striker shaft
    • The open end of the sleeve should face the spring.
  3. Install the striker spring
    • Slide it over the spacer sleeve.
  4. Compress the spring using your fingers
    • Pull the spring downward with your thumb and forefinger to expose the striker shaft’s notch.
  5. Install the spring cups
    • Drop both half-moon cups into the exposed notch. Make sure they seat evenly.
    • Slowly release the spring so it centers on the cups and locks them in place.

Step 2: How To Assemble The Glock 43 Firing Pin Safety


Step 3: How To Install The Glock 43 Firing Pin Safety and Extractor

  1. Insert the firing pin safety into its bore in the slide
    • Make sure the spring is seated and facing downward.
  2. Press the safety inward
    • Use your thumb or finger to hold it fully depressed.
  3. Insert the extractor from the side of the slide
    • Slide it into place while holding the firing pin safety down.
  4. Release the safety
    • It should rise and lock the extractor in position.

🧠 Check Fit: The extractor should pivot slightly but not wiggle loose. The firing pin safety should reset when pressed and released.


Step 4: How To Install The Glock 43 Extractor Depressor Plunger (EDP) Assembly

  1. Reassemble the EDP if you broke it down
    • Slide the spring over the nub on the metal plunger until it snaps into place
    • Install the spring-loaded bearing onto the rear end.
  2. Insert the entire EDP into the lower slide channel
    • The bearing should face rearward and the metal tip rest on the back of the extractor.

Step 5: How To Install The Glock 43 Striker Assembly

  1. Slide the completed striker assembly into the upper channel of the slide
    • It should move smoothly and seat fully.
  2. Apply light forward pressure
    • This ensures it stays in place while you install the backplate.

Step 6: How To Install The Glock 43 Slide Cover Plate

  1. Use a punch to press forward on both the striker and EDP assemblies
    • This relieves tension from the cover plate channel.
  2. Slide the cover plate upward into place from the bottom of the slide
    • Keep pressure on the internal assemblies until the plate holds them in place.
  3. Press the plate until it clicks into place
    • It should be flush with the back of the slide.

🔧 Final Check: Shake the slide gently. There should be no rattling. The firing pin safety should click when pressed. The extractor should be firm.


🔧 What Tools You Need For A Glock 43 Slide Reassembly

  • Glock Armorer’s Tool or 3/32″ punch
    – Used to press in the firing pin safety and EDP bearing during cover plate installation
    – Also handy for aligning spring cups if needed
  • Bench block (non-marring)
    – Keeps the slide stable while working on internal parts
  • Small parts tray or magnetic mat
    – Prevents losing spring cups or tiny bearings during striker reassembly
  • Bright workspace lighting
    – Helps inspect striker channel, safety plunger, and extractor seat
  • Real Avid Glock Tool Kit (optional)
    – Includes all-in-one solutions and non-marring tools specific to Glock platforms

⚠️ Safety Tips During Slide Reassembly

  • Wear eye protection
    – Both the striker spring and EDP are under tension. The spring-loaded bearing can launch with serious force if released unexpectedly.
  • Control spring tension with your hands — not tools
    – Glock recommends using finger pressure to compress the striker spring and EDP components. Avoid using pliers or metal tools that can damage plastic parts.
  • Cover the back of the slide during striker/EDP install
    – Use your thumb or palm to block parts in case they slip while installing the cover plate.
  • Confirm all parts are flush and reset
    – After reassembly, press the firing pin safety and extractor — both should move and reset cleanly.
  • No “extra” parts? You’re good.
    – If you have leftover parts, stop. Don’t guess. Double-check assembly order before installing the slide back on the frame.

How to Disassemble the Glock 43 Frame

Disassembling the Glock 43 frame gives full access to the trigger assembly, locking block, and internal components. This process uses simple tools, but attention to part alignment and spring tension is key.


Step 1: How To Remove The Glock 43 Trigger Pin

  1. Place the frame on a non-marring bench block
    • Left side facing up, trigger pointed forward.
  2. Use a 3/32″ punch to push the trigger pin out (left to right)
    • Important: Rock the slide stop lever back and forth while applying pressure. It locks into grooves on the pin and must be moved to release tension.

Step 2: How To Remove The Glock 43 Locking Block

  1. Insert your punch under the rear of the locking block
    • Use it as a lever to gently lift the block out.

⚠️ Do not pry against the trigger bar. Apply pressure under the block only.

  1. Lift the block straight up and out
    • Set it aside for inspection.

🔍 Inspect the block for cracks, rounding at the slide rail interface, or deformation. Check that the recoil spring shelf is intact.


Step 3: How To Remove The Glock 43 Slide Stop

  1. Remove the slide stop by lifting straight up.
    • Inspect for: Bent or worn spring tab; clean contact points.

Step 4: How To Remove The Glock 43 Trigger Housing and Trigger Assembly

  1. Grasp the ejector and lift upward on the rear of the trigger housing
    • The entire assembly should slide out as one unit: trigger, trigger bar, connector, and housing.
  2. Carefully remove the assembly from the frame
    • Pay attention to how the trigger bar rides in the frame rails.

🔍 Inspect the connector spring tension, trigger bar for wear, or rust


Step 5: How To Remove The Glock 43 Slide Lock

  1. Push Down on one Side of the Slide Lock
  2. Push The Slide Lock towards the side that is down
    • Keep a finger over the slide lock to capture the spring
  3. Continue pushing the Slide Lock untill it stops
    • Now push down on the slide lock and continue pushing it out

How to Disassemble the Glock 43 Trigger – Breaking Down the housing

  1. Hold the housing in your left hand and trigger shoe in your right.
  2. Twist the trigger clockwise in the housing to release the bearing from the front of the Cruciform
  3. Now rotate counterclockwise untill it clears the housing.
  4. With a punch, push the connector out of the housing from left.
  5. Using a punch push push the trigger spring bearing doan and slide it far enough to stick out the front
  6. Now flip the rod up and lift the assembly out the rear of the housing.
  7. Now Hold the bearing and twist the assembly so that the rod will remove through the slot of the bearing
  8. Remove the bearing
  9. Remove the spring from the Rod

🔧 Tools Used in Frame Disassembly

  • Glock Armorer’s Tool or 3/32″ punch
    – For pushing out the trigger pin, locking block pin, and connector
  • Bench block (non-marring)
    – Supports the frame and prevents damage while driving out pins
  • Needle-nose pliers (optional)
    – Helpful for lifting the trigger housing or connector if tight
  • Parts tray or magnetic mat
    – Keeps track of the slide stop lever, pins, and connector
  • Small flashlight
    – Useful for inspecting inside the frame and trigger housing

⚠️ Safety Tips During Frame Disassembly

  • Work on a stable, flat surface
    – Prevents the frame from slipping when applying punch pressure
  • Rock the slide stop lever when removing the trigger pin
    – Do not force it — rocking is required to release pin tension
  • Do not pry on the trigger bar or ejector
    – Always lift components from designated edges, never from flexing points
  • Check for spring tension before removing internal components
    – Some connectors or trigger bars may release with light snap force
  • Organize parts in removal order
    – Makes reassembly easier and prevents reversed orientations

How to Assemble the Glock 43 Frame

Now that all internal parts are cleaned, inspected, and laid out, it’s time to rebuild the frame. Reassembly is straightforward, but part orientation and seating order are critical to reliable function.


Step 1: How To Assemble The Glock 43 Trigger (if disassembled)

  1. Install the spring on the slotted rod (this spring is shorter than the slide lock spring)
  2. Compress the spring and slide the bearing on over the slotted rod
  3. Twist the bearing so that it catches on the sloted Rod
    • Make sure the the angle of the rod end matches the “hooked end” of the bearing (the flat side of the rod should face the short end of the bearing).
  4. Insert the rounded end of the rod into the font of the housing (hooked end of the bearing should be in the 12 o’clock position.
    • Compress the spring so the rod shows through the front
    • Rotate the rod down
    • Release pressure, the rod should be locked into place.
  5. Install the Connector into the right side of the housing until the short end bottoms out.
  6. Hook the Cruciform of the trigger bar into the bearing.
  7. Rotate the arm of the Cruciform into the slot behind the connector
  8. Rotate the trigger upwards so the rear of the opposite arm is under the ledge on the connector.

Step 2: How To Install The Glock 43 Trigger Mechanism Housing and Trigger Group

  1. Insert the entire trigger assembly into the frame
    • Start with the trigger shoe and install it into the trigger slot
  2. Lower the rear of the trigger housing into the rear of the frame
    • Push down gently until the housing locks flush with the frame.
      • You will have to push in on the trigger bar to clear the frame in the rear.
  3. Install plastic pin into the frame to hold the housing in place.

🧠 Check Fit: The trigger bar should rest freely along the frame rails with no binding.


Step 4: How To Install The Glock 43 Slide Lock

  1. Insert the spring into the hole in just after the dust cover (this spring is longer than the trigger spring)
  2. Insert the slide lock, with the groove facing the rear, into the frame at a 45 degree angle tipping upwards
  3. Use a punch to compress the spring
  4. Walk the slide lock over the spring and tip it straight when it covers the spring
    • Take your punch out at this time
  5. Continue pushing the slide lock into the frame untill the spring snaps into place.

Step 3: How To Install The Glock 43 Locking Block

  1. Set the locking block into place just above the trigger guard cutout
  2. Press it downward until it seats fully in the frame
    • You may need to push lightly with your thumb or punch handle.

🔍 Verify: The locking block should sit flush — no rocking or gaps.


Step 5: How To Install The Glock 43 Slide Stop Lever And Trigger Pin

  1. Place the slide stop lever into its cutout on the left side of the frame
    • The spring should rest over the locking block, angled downward.
  2. Insert the trigger pin (Right to Left)
  3. Push the pin until it is centered
    • You should feel it lock into place with positive retention.

🧠 Final Fit Check:

  • Trigger bar should move freely
  • Slide stop lever should spring back when pressed
  • All pins flush with the frame

🔧 Tools Used in Frame Reassembly

  • Glock Armorer’s Tool or 3/32″ punch
    – Used to align and seat the locking block pin and trigger pin
    – Helps guide parts without damaging polymer
  • Non-marring bench block
    – Supports the frame during pin installation
  • Needle-nose pliers (optional)
    – Useful for guiding the slide stop lever or seating tight-fitting connectors
  • Light lubricant (Glock-approved or Aegis)
    – A tiny amount on pin channels can help during reassembly
  • Flashlight or inspection lamp
    – Helps verify trigger bar fit and connector alignment

⚠️ Safety Tips During Frame Reassembly

  • Do not force pins into place
    – Misaligned components or jammed slide stop springs can resist pin entry — always double-check orientation
  • Keep fingers clear of the trigger bar’s flex points
    – Sudden spring tension can snap or bend soft contact areas
  • Install the trigger pin last
    – Ensure the slide stop lever is properly positioned and rocked during install — this is critical for function
  • Verify flush seating
    – All pins should be flush with the frame. High or sunken pins may cause function issues
  • Final movement test matters
    – After reassembly, squeeze the trigger and reset bar (with slide off) to verify smooth motion and full engagement

Glock 43 Final Reassembly – Installing the Slide and Performing Function Checks

With the slide and frame fully reassembled, it’s time to put everything back together and ensure it works as intended. These last steps confirm mechanical fit, part engagement, and trigger function.


Step 1: How To Install the Glock 43 Barrel and Recoil Spring into the Slide

  1. Insert the barrel into the slide from the rear
    • It should drop in smoothly and sit flush in the front.
  2. Seat the recoil spring assembly
    • Place the flat end against the barrel lug and compress slightly.
    • Lock the spring’s front into its notch in the slide.

Step 2: How To Install The Glock 43 Slide onto the Frame

  1. Align the slide rails with the frame rails
    • Start from the front and slowly pull rearward.
  2. Rack the slide fully to the rear and release
    • The slide should move freely and lock into battery.

Step 3: How To Perform Glock 43 Function Checks

Trigger Reset and Striker Release:

  1. Rack the slide.
  2. Pull the trigger — you should hear and feel the striker release.
  3. Hold the trigger to the rear, rack the slide again.
  4. Slowly release the trigger — listen for a clean click (reset).
  5. Pull again — you should get another striker release.

Slide Lock Function:

  1. Insert an empty magazine.
  2. Rack the slide — it should lock open.
  3. Remove the magazine.
  4. Press the slide stop — the slide should release cleanly.

Dry Safety Check (No Ammo Present):

  • Ensure the slide cycles smoothly
  • Trigger should break consistently
  • Reset should be tactile and audible
  • Slide stop lever should engage and release reliably

🔒 Important: No live ammo should be present during these checks. Do not insert a loaded magazine until all function tests are complete and verified.


FAQ – Glock 43 Disassembly and Reassembly

How do I fully disassemble a Glock 43?

To fully disassemble a Glock 43, field strip the slide and remove the barrel and recoil spring. Then take apart the slide (striker, extractor, safety, sights) and the frame (trigger pin, slide stop lever, locking block, trigger housing, and connector). Follow armorer-level steps to ensure proper orientation and safe removal of spring-loaded parts.


Do I need special tools to take apart a Glock 43?

You only need a few basic tools: a 3/32″ punch (or Glock tool), a non-marring bench block, and possibly a sight pusher or front sight tool. A magnetic tray and flashlight help with organization and inspection, but no advanced tools are required.


What should I look for when inspecting Glock 43 internals?

Check the striker for chipping or rounded edges. Look for wear on the extractor, damage to the slide rails, binding in the trigger bar, and cracks in the locking block. Springs should be tight and evenly coiled — not rusted, collapsed, or kinked.


What’s the difference between a field strip and full disassembly?

A field strip removes the slide, barrel, and recoil spring only. Full disassembly breaks down every internal component in the slide and frame, allowing you to inspect, clean, or replace each part.


How often should I fully disassemble my Glock 43?

Most shooters never need a full teardown unless diagnosing issues, upgrading parts, or cleaning after extreme use. Field strip and clean regularly, but only go full-depth if performance drops or parts need inspection or replacement.


Wrap-Up – Why A Glock 43 Full Disassembly Matters

This isn’t just about cleaning. It’s about control.

Knowing how to fully disassemble and reassemble a Glock 43 means more than maintenance — it means confidence. Whether you’re upgrading internals, diagnosing malfunctions, or just making sure your carry gun runs right, this guide gives you a full breakdown with zero guesswork.

Every part has a job. Now you know how to inspect it, fix it, and put it back together the right way.

🔗 Need help diagnosing a specific issue? Check the Glock Troubleshooting Guide for the most common problems — and how to fix them fast.


🛠 OEM Glock 43 Replacement Intervals

Glock doesn’t leave parts replacement to guesswork. Here’s what the Armorer’s Manual recommends — and what most experienced shooters follow in the real world.

These are the service intervals and inspection cues to keep your Glock 43 running right:

  • Recoil Spring Assembly (RSA):
    Replace every 5,000 rounds — or earlier if the slide feels sluggish or ejection starts to get weird.
    OEM Part #: 33601
  • Striker Spring:
    Swap out every 10,000 rounds or if the trigger starts feeling lighter or gritty.
  • Trigger Return Spring:
    Replace every 10,000 rounds, especially if you start missing resets or the trigger won’t return cleanly.
  • Slide Cover Plate:
    Replace immediately if it feels loose, warped, or shows any cracking — it holds back critical internal parts under spring tension.
  • Extractor:
    Replace if the hook is chipped or rounded off — especially if you’ve had stovepipes or weak ejection.
  • Connector:
    If your trigger is dragging, failing to break consistently, or showing weak reset — clean it first. If that doesn’t fix it, replace the connector.
  • Trigger Housing & Locking Block:
    These rarely need replacing, but if you see hairline cracks, wobble, or wear at pin holes — especially after 10K+ rounds — it’s time to pull and inspect.

📌 Tip: Inspect everything during full teardown. Round counts matter, but part condition always tells the real story.


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Original Content by The Rogue Banshee / My Rogue Solutions LLC.
Credit: Jason Schaller
Email: jschaller@trb.fyi

About the Author: Jason Schaller is a former FFL holder and founder of Eagle Eye Shooters Supply in Helena, MT, where he provided professional gunsmithing services and guided customers on all aspects of firearms ownership. Today, he teaches DIY gunsmithing at The Rogue Banshee and serves as a Chief Instructor at Freedom Crew University. With over a decade of hands-on professional experience with firearms and nearly 30 years in IT, Jason also holds top cybersecurity certifications including CISSP, CISA, and CRISC. When he’s not geeking out, he’s helping others build self-reliance, critical thinking, and firearms proficiency through real-world content.

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