How to Assemble an AR-15 Lower – Step-by-Step

Learn how to assemble an AR-15 lower step-by-step with this full visual guide. From bolt catch to buffer tube, this walkthrough shows each part, tool, and technique to build it right the first time.

Jason Schaller

April 28, 2024

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GUNSMITHING – HAND CHECKERING OF A PISTOL // 1911 Front Strap Checkering for Safety and Looks

Are you sick of your 1911 slipping in your hands because of a smooth front strap? Let me show you how I do a 1911 front strap checkering job. Yea I do hand checkering on my guns instead of doing it on a mill. There are only a few gunsmithing tools you will need to […]

Jason Schaller

May 21, 2021

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The Ultimate AR-15 Troubleshooting Guide for Gun Owners Who Want Their Rifle to Run Right Every Time

AR-15 not feeding, firing, or ejecting right? This no-fluff AR-15 Troubleshooting Guide breaks down every failure—light primer strikes, short-stroking, double feeds, weak ejection—and shows exactly how to fix it. Built for DIY gunsmiths, competitive shooters, and anyone who wants their rifle to run reliably.

Jason Schaller

May 23, 2025

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The AR Builder Board: Your Ultimate AR15 Building Tool!

In this video we’re about to dive deep into the world of AR15 building with the ultimate tool in your arsenal—the AR Builder Board! If you’re passionate about firearms and love crafting, customizing, and building your own AR15, then you’re in for a treat. In this video, we’ll unlock the full potential of the AR […]

Jason Schaller

September 8, 2023

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DIY Tactical Mossberg 500 Build | The Home Rumbler

Are you a fan of tactical shotguns but working with a tight budget? No problem—we’ve got you covered. In this build, we’re transforming a pile of Mossberg 500 parts into a tactical powerhouse, the Home Rumbler DIY Tactical Mossberg 500 Build. Whether you’ve got spare parts lying around or you’re looking to upgrade your existing […]

Jason Schaller

June 7, 2024

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SIG M17 AND SIG M18 MANUAL SAFETY CONVERSION // Sig P320 FCU Manual Safety Conversion

This P320 Manual Safety Conversion video shows you how I convert the manual safety (Sig M17 and Sig M18) FCU to a standard FCU. Although there are some slight differences between the standard and the manual safety versions of the P320 FCU, most of the concepts are the same between the two. Don’t forget to […]

Jason Schaller

May 7, 2020

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What You Need to Know About the Timberwolf 17 (Before You Buy)

After 1,500 rounds, here’s what stood out about the Timberwolf 17. It fits Glock holsters, runs Gen 3 parts, and fixes what Glock left out.

Jason Schaller

May 1, 2025

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The Beginner's Guide to the top 5 AR15 Upgrades

Looking to upgrade your AR15 rifle, but not sure where to start? You’ve come to the right place! In this beginner’s guide, we’ll cover the top 5 AR15 upgrades that every shooter should consider. I am a Chief Instructor at Freedom Crew University and I will walk you through each upgrade, explaining the benefits and […]

Jason Schaller

February 24, 2023

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JSD Supply and Gideon Optics: From Small Table to Big Success

The Growth of JSD Supply and DIY Gun Building have reshaped the way firearm enthusiasts build their own guns. What started as a small table at a local gun show turned into one of the most recognized names in the DIY firearms world. By offering high-quality slides, triggers, and optics, JSD Supply made it easier […]

Jason Schaller

June 17, 2024

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How to do a Sig Sauer Frame Assembly job on a P220, P225, P228, P229, and M11A1

Learn how to complete a full Sig Sauer frame assembly on the P220, P225, P228, P229, and M11A1 pistols. Step-by-step, easy-to-follow instructions for assembling key parts.

Jason Schaller

February 1, 2018

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Tools used in the Polymer80 PF940SC completion videos

This restored post lists every tool used in my original PF940SC completion videos, from vices to files and Dremel accessories. Building methods have changed—this is here for reference only.

Jason Schaller

May 14, 2025

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Fast AR Barrel Switch: Under 1-Minute Guide!

Ever wondered how to swiftly switch your AR barrel in under a minute? Dive into our latest guide and discover the revolutionary Quick Detach Barrel system from Bear City Arms that’s changing the game! Whether you’re gearing up for a hunt, hitting the range, or just craving a new look for your AR-15, this under […]

Jason Schaller

December 15, 2023

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