- WHAT IS YOUR GLOCK DOING?
- Failure to Feed
- Step 1: Field Check (30 seconds)
- Step 2: Range Diagnosis (2 minutes)
- Step 3: Workbench Fix (Tools required)
- Failure to Fire (Click, No Bang)
- Step 1: Field Check (30 seconds)
- Step 2: Range Diagnosis (2 minutes)
- Step 3: Workbench Fix (Tools required)
- Failure to Eject (Stovepipe / Brass to Face / Weak Ejection)
- Step 1: Field Check (30 seconds)
- Step 2: Range Diagnosis (2 minutes)
- Step 3: Workbench Fix (Tools required)
- Failure to Extract (Double Feed / Stuck Casing)
- Step 1: Field Check (30 seconds)
- Step 2: Range Diagnosis (2 minutes)
- Step 3: Workbench Fix (Tools required)
- Failure to Cycle (Slide Sluggish / Won't Close / Won't Lock Open)
- Step 1: Field Check (30 seconds)
- Step 2: Range Diagnosis (2 minutes)
- Step 3: Workbench Fix (Tools required)
- Trigger Won't Reset
- Step 1: Field Check (30 seconds)
- Step 2: Range Diagnosis (2 minutes)
- Step 3: Workbench Fix (Tools required)
- Magazine Issues (One Mag Fails / Won't Seat / Drops Free)
- Step 1: Field Check (30 seconds)
- Step 2: Range Diagnosis (2 minutes)
- Step 3: Workbench Fix (Tools required)
- Preventive Maintenance
- Every Range Session (5 minutes)
- Every 500 Rounds (30 minutes)
- Every 3,000 Rounds (Parts replacement)
- Every 5,000 Rounds (Deep inspection)
- ✅ Problem Fixed
- ⚠ Time to Call a Pro
- Tools I Trust
- Disassembly & Maintenance
- Cleaning
- Replacement Parts
- Quick FAQ
- Final Thoughts: Confidence Through Competence
- Content Use and Compliance
- Affiliate Disclaimer
- Firearm Safety Notice
This page may contain affiliate links. If you click and buy, I may earn a small commission at no extra cost to you. Your purchase using affiliate links helps support the creation of independent content.
Your Glock just failed at the range. Or maybe it is acting weird on the workbench. You need answers fast–not theory, not history lessons, not three different explanations of the same problem. With 40+ years of firearms experience and 10+ years as a professional gunsmith, I have seen every Glock failure under the sun. This guide cuts straight to what actually works.
Follow the checkboxes. Fix your gun. Get back to shooting.
⚠ IS YOUR GLOCK SAFE?
STOP. CLEAR. VERIFY. Before you do anything else.
- Magazine removed
- Chamber empty (visual + finger check)
- Slide locked back OR trigger pulled on empty chamber
If ANY check fails… Stop. Clear the firearm completely. No exceptions. No shortcuts. Do not proceed until you see daylight through the barrel.
WHAT IS YOUR GLOCK DOING?
Click your symptom. Jump straight to the fix.
“My Glock won’t…”
- Feed rounds – Round stuck, nose-diving, or hanging up
- Fire (click, no bang) – Hammer drops but no shot
- Eject brass – Stovepipe, brass to face, weak ejection
- Extract rounds – Double feed, stuck casing
- Cycle the slide – Sluggish, won’t close, won’t lock open
- Reset the trigger – Trigger stays dead
- Lock back on empty – Mag issues
Failure to Feed
Symptom: You rack the slide or fire a shot. The next round does not chamber. It hangs halfway, nose-dives, or the slide stops short.
Step 1: Field Check (30 seconds)
- Swap in a different magazine. Rack the slide hard. Did it feed?
- If still stuck, pull the slide back fully and release–do not ride it forward.
- Check if the round is nose-diving (pointing down) or hanging on the feed ramp.
Fixed? [YES – Click here] / [NO – Continue to Step 2]
Step 2: Range Diagnosis (2 minutes)
The feed path has three parts: magazine —> feed ramp —> chamber. One of them is dirty or damaged.
- Field strip the pistol. Look at the feed ramp on the barrel. Carbon buildup? Clean it.
- Inspect the chamber with a flashlight. Dirty or scratched? Clean it.
- Check your ammo. Reloads? Flat-point bullets? Try factory FMJ ammo.
📌 Pro Tip: Rub a Sharpie on the feed ramp and chamber. Cycle the slide a few times. Where the marker rubs off is where the round is dragging.
Fixed? [YES – Click here] / [NO – Continue to Step 3]
Step 3: Workbench Fix (Tools required)
Time to replace parts. Based on symptoms:
If nose-diving:
- Measure feed lip width with calipers. Should be 0.347″ – 0.353″. Wider = replace mag.
- Replace magazine spring and follower with OEM parts.
If hanging on ramp:
- Polish feed ramp lightly with 600-grit or Scotch-Brite.
- Replace recoil spring assembly if over 3,000 rounds.
Still broken? Escalation path: Find a certified Glock armorer
Failure to Fire (Click, No Bang)
Symptom: Trigger pulls. You hear a click. No shot fires. Look at the primer–is there a dent?
Step 1: Field Check (30 seconds)
- Keep the gun pointed downrange for 30 seconds. Squib load? If no bulge in barrel, proceed.
- Inspect the spent casing. Is there a primer strike? Light dent or no dent?
- Try a fresh round from a different magazine. Does it fire?
Fixed? [YES – Click here] / [NO – Continue to Step 2]
Step 2: Range Diagnosis (2 minutes)
Two paths based on what you see:
If LIGHT primer strike (shallow dent):
- Strip the slide. Remove the striker assembly.
- Check the striker spring. Compressed or broken? Replace it.
- Look at the striker cups. Both seated evenly? Reversed cups = light strikes.
- Clean the striker channel–DON’T oil it. Run it dry.
If NO primer strike (no dent at all):
- Check the firing pin safety plunger. Moves freely? Spring attached?
- Does the trigger bar lift the plunger when you pull the trigger? Watch it.
📌 Pro Tip: Never mix aftermarket and OEM striker parts. I have seen more light strikes from mixed part kits than anything else. Like putting Honda brakes on a Chevy–they might fit, but they will not work right.
Fixed? [YES – Click here] / [NO – Continue to Step 3]
Step 3: Workbench Fix (Tools required)
Deep inspection and replacement:
- Disassemble striker assembly completely. Check striker tip for chips or rounding.
- Replace striker spring with OEM (Wolff or Glock factory).
- Inspect firing pin safety and spring. Replace if worn.
- Check channel liner for damage. Replace if cracked or loose.
Still broken? Escalation path: Find a certified Glock armorer
Failure to Eject (Stovepipe / Brass to Face / Weak Ejection)
Symptom: Spent casing stuck–pointing straight up (stovepipe), hitting you in the face, or dribbling out weakly.
Step 1: Field Check (30 seconds)
- Are you limp-wristing? Grip the gun hard. Lock your wrists. Fire one round. Stovepipe gone? Problem solved.
- Strip the gun. Look at the extractor–is it dirty? Carbon-packed?
- Check your recoil spring. Is the gun short-recoiling?
Fixed? [YES – Click here] / [NO – Continue to Step 2]
Step 2: Range Diagnosis (2 minutes)
Extractor tension is king here. 90% of stovepipes I see in the shop are extractor-related.
- Remove the extractor and spring-loaded bearing. Clean both.
- Check extractor hook condition–is it chipped, rounded, or worn?
- Test extractor tension: Slide a spent casing under the extractor. Hold slide upside down. Does it hold or drop? Should hold firm.
- Inspect the ejector (the fixed piece in the frame). Bent? Worn?
If brass is hitting your face (BTF):
- Ejector angle is wrong. Most Glocks need Gen4/Gen5 style ejector (Part #30274).
- Weak extractor tension causes erratic ejection patterns.
📌 Pro Tip: Take slow-motion video of your ejection pattern. Brass should eject consistently to your right and rear. Random or forward ejection means extractor or ejector issues.
Fixed? [YES – Click here] / [NO – Continue to Step 3]
Step 3: Workbench Fix (Tools required)
- Replace extractor spring and spring-loaded bearing (extractor depressor plunger).
- Replace extractor if hook is worn or chipped. Go OEM–aftermarket extractors cause more problems than they solve.
- Replace ejector if brass pattern is erratic. Use #30274 for 9mm.
- Replace recoil spring assembly with OEM if over 3,000 rounds.
Still broken? Escalation path: Find a certified Glock armorer
Failure to Extract (Double Feed / Stuck Casing)
Symptom: Spent casing stays in chamber. Next round tries to feed. You get a double feed jam or a stuck slide.
Step 1: Field Check (30 seconds)
- Strip the gun if you can. If slide is stuck, lock slide back, drop mag, work it free.
- Look at the stuck casing. Is it torn? Is the extractor rim embedded?
- Drop a fresh spent casing in the chamber. Does it slide in freely or stick?
Fixed? [YES – Click here] / [NO – Continue to Step 2]
Step 2: Range Diagnosis (2 minutes)
Three culprits: dirty chamber, weak extractor, bad ammo.
- Clean chamber thoroughly with chamber brush. Carbon ring at the throat is the #1 cause.
- Inspect extractor hook. Is it chipped? Rounded? Weak?
- Check ammo. Steel case? Dirty reloads? Try factory brass.
- Inspect chamber walls with flashlight. Burrs or scoring?
📌 Pro Tip: The “chamber drop test”–a spent casing should drop in and fall out freely under gravity. If it sticks, your chamber is dirty or damaged.
Fixed? [YES – Click here] / [NO – Continue to Step 3]
Step 3: Workbench Fix (Tools required)
- Deep clean chamber with bore solvent and bronze brush. Remove all carbon rings.
- Replace extractor assembly if hook is worn.
- Replace extractor spring and spring-loaded bearing.
- If chamber walls are scored, polish gently or take to armorer for inspection.
Still broken? Escalation path: Find a certified Glock armorer
Failure to Cycle (Slide Sluggish / Won’t Close / Won’t Lock Open)
Symptom: Slide moves slow, stops short of closing, or fails to lock back on empty magazine.
Step 1: Field Check (30 seconds)
- Are you riding the slide stop with your thumb? Check grip. Locking back mid-mag? That is your thumb.
- Field strip. Are the rails clean and lightly lubed?
- Squirt too much oil in there? Over-lubing attracts grit and slows cycling.
Fixed? [YES – Click here] / [NO – Continue to Step 2]
Step 2: Range Diagnosis (2 minutes)
Sluggish cycling = drag somewhere.
- Inspect slide rails on both slide and frame. Grit? Carbon buildup?
- Check recoil spring. Is it collapsed? Over 3,000 rounds? Replace it.
- Watch the slide stop lever. Does it move freely? Spring attached?
- If not locking back on empty: Check mag follower pushing up on slide stop.
📌 Pro Tip: Use a flashlight when testing slide lock. Watch the follower engage the slide stop. If it misses, your mag spring or follower is worn.
Fixed? [YES – Click here] / [NO – Continue to Step 3]
Step 3: Workbench Fix (Tools required)
- Deep clean slide rails. Remove all carbon. Light coat of gun lube only.
- Replace recoil spring assembly with OEM.
- Replace magazine spring and follower if not locking back.
- Inspect slide stop spring. Replace if bent or weak.
Still broken? Escalation path: Find a certified Glock armorer
Trigger Won’t Reset
Symptom: You pull the trigger, gun fires, trigger stays dead. No click, no reset.
Step 1: Field Check (30 seconds)
- Did the slide cycle fully? Short-cycling prevents reset.
- Release the trigger fully forward. Does it re-engage?
- Pull the slide back 1/4 inch. Does the trigger reset now?
Fixed? [YES – Click here] / [NO – Continue to Step 2]
Step 2: Range Diagnosis (2 minutes)
- Field strip. Look inside the trigger housing.
- Trigger return spring–is it attached? Twisted? Broken?
- Connector angle–is it bent or making good contact with trigger bar?
- Aftermarket connector? Many are out-of-spec and cause reset issues.
📌 Pro Tip: OEM connectors rarely have reset issues. If you changed yours and now have problems, go back to stock. Aftermarket parts are the #1 cause of trigger issues in my shop.
Fixed? [YES – Click here] / [NO – Continue to Step 3]
Step 3: Workbench Fix (Tools required)
- Remove trigger housing from frame.
- Replace trigger return spring with OEM.
- Check connector. If aftermarket, replace with OEM 5.5 lb connector.
- Inspect trigger bar for burrs or wear.
Still broken? Escalation path: Find a certified Glock armorer
Magazine Issues (One Mag Fails / Won’t Seat / Drops Free)
Symptom: Mag won’t lock in, falls out, or causes malfunctions other mags don’t.
Step 1: Field Check (30 seconds)
- Test with a different magazine. Does the problem follow the mag?
- Squirt too much lube in the mag? Run mags dry.
- Is the mag body swollen? Heat + loaded mags = slight swelling.
Fixed? [YES – Click here] / [NO – Continue to Step 2]
Step 2: Range Diagnosis (2 minutes)
- Inspect mag catch notch on magazine. Worn? Rounded?
- Check mag catch on frame. Worn? Spring weak?
- Measure feed lip width with calipers.
- Check follower tilt. Press rounds down. Follower should stay flat.
📌 Pro Tip: Label your mags. Number them. If #2 causes problems every range trip, retire it. Bad mags always reveal themselves if you track them.
Fixed? [YES – Click here] / [NO – Continue to Step 3]
Step 3: Workbench Fix (Tools required)
- Replace mag spring and follower with OEM.
- Replace mag body if feed lips are spread beyond 0.353″.
- Replace mag catch and spring in frame if mags won’t stay seated.
- Rotate carry mags every 2-3 months–springs wear from being loaded.
Still broken? Escalation path: Find a certified Glock armorer
Preventive Maintenance
Stop failures before they start. Here is your maintenance checklist:
Every Range Session (5 minutes)
- Wipe down slide rails
- Brush out chamber
- Quick lube on rails only
Every 500 Rounds (30 minutes)
- Full field strip
- Clean slide internals (extractor, striker channel)
- Inspection–cracks? Wear?
Every 3,000 Rounds (Parts replacement)
- Replace recoil spring
- Replace extractor spring and bearing
- Rotate or replace magazine springs
Every 5,000 Rounds (Deep inspection)
- Replace all springs (trigger, mag catch, slide stop)
- Inspect barrel and chamber for wear
- Check frame rails for peening or damage
📌 Pro Tip: Think of it like your car. You change oil before the engine seizes. Replace springs before they fail. A $5 spring beats a $500 gunsmith bill every time.
Tools I recommend: See Tools I Trust section below.
✅ Problem Fixed
Good work. Your Glock should run now.
Before you load up:
- Function check the gun (dry).
- Test with one round in the mag (live).
- Then test with full mag.
If the problem comes back, work through the steps again. Intermittent issues are usually failing parts crying for help.
Bookmark this guide. Next time something goes wrong, you will know exactly where to start.
⚠ Time to Call a Pro
If you worked through all three steps and your Glock is still failing, stop. Put the tools down. This is not a failure–this is knowing your limits.
Find a certified Glock armorer:
- Glock Certified Armorers
- Local gunsmiths with Glock certification
When to escalate immediately (safety issues):
- Out-of-battery discharge
- Trigger fires without pull
- Drop-fire incidents
- Slide cracks or frame damage
- Barrel bulges or obstructions
Do not shoot until these are fixed by a professional. Period.
Tools I Trust
These are the tools I use on my bench. They work.
Disassembly & Maintenance
- Real Avid Glock Tool
The right tool for the job. Works on all Glock models. - Real Avid Smart Mag Tool for Glock
Makes mag disassembly easy. Saves your thumbs. - Real Avid 4-Pin Punch Set
For trigger housing and detailed work.
Cleaning
- Real Avid Speed Clean System
Jag, bore brush, and patches. Fast. - Real Avid One Piece Carbon Fiber Cleaning Rod
Gentle on barrels, stiff enough to clean. - Aegis Gun Care (Use code BOOMLUBE for 10% off)
My go-to lube. Cleans easy, runs slick, no drama.
Replacement Parts
Always go OEM when possible. Aftermarket parts are the #1 cause of repeat problems in my shop.
- Glock factory recoil spring assemblies
- Glock factory extractor assemblies
- Glock factory magazine springs and followers
- Wolff Springs for aftermarket striker springs
Quick FAQ
Why does my Glock keep malfunctioning with hollow points?
Flat or sharp bullet profiles may not match your feed ramp angle. Clean the ramp and try proven hollow points like Gold Dot or HST. Test with a fresh OEM mag.
What causes double feeds in a Glock?
Failed extraction or mag timing. Replace the extractor, clean the chamber, and test with a known-good magazine. Usually extractor-related.
Why won’t my Glock slide lock back?
Three causes: 1) Your thumb is riding the slide stop, 2) Weak mag spring or follower, 3) Dirty slide stop mechanism. Check your grip first.
Is it safe to dry fire my Glock?
Yes. Glocks are safe to dry fire without snap caps. The firing pin block prevents damage.
How do I know if my extractor is bad?
The “hold test”: Slide a spent casing under the extractor. Hold the slide upside down. If it drops, tension is weak. Replace the extractor spring and spring-loaded bearing first. If still weak, replace the extractor.
Final Thoughts: Confidence Through Competence
Your Glock is one of the most reliable tools you can carry–but it is still a machine. Machines wear. Machines fail. The moment you think it is “just a Glock, it will run no matter what,” you are gambling.
This guide gives you a blueprint: Symptom —> Diagnosis —> Fix. No guesswork. No theory. Just what works from 40+ years of working on guns.
Clean your gun. Replace worn parts. Use quality ammo. Never ignore small issues.
Because that small stuff? It is what separates a range headache from a real-world failure.
You do not need to be an armorer to keep your Glock running. You just need to be someone who gives a damn.
You are. And now, you are armed with the knowledge that proves it.
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Credits:
Original Content by The Rogue Banshee / My Rogue Solutions LLC.
Credit: Jason Schaller
Email: jschaller@trb.fyi
About the Author: Jason Schaller, a former FFL holder and founder of Eagle Eye Shooters Supply in Helena, MT, is a professional gunsmith with 40+ years of firearms experience and 10+ years as a professional gunsmith. He founded The Rogue Banshee, and is Chief Instructor at Freedom Crew University teaching responsible firearms ownership. With over a decade of hands-on professional experience and nearly 30 years in IT, he uses that knowledge base to teach others critical thinking, and firearms proficiency through real-world content.
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The videos, articles, and images shared by The Rogue Banshee feature gear, tools, and products for informational and entertainment purposes only. All activities follow local, state, and federal laws where they were conducted in. All activities are conducted safely under professional supervision in approved locations.
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