Firearm Upgrades and DIY Gunsmithing

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.

This archived guide shows how I originally completed a Polymer80 PF940SC using a Dremel. While outdated, it's still useful for reference and troubleshooting older builds.

This is the original PF940SC drill press method from the early days of Polymer80. It’s outdated now, but restored for reference and old-school builders.

This is an old article that I recovered. One day I will get back to update it with new information as the jigs have changed over the years. AR Jig Showdown (2025 Update): 5D Tactical vs. 80% Arms Easy Jig Gen 3 Five Years Later—What’s Changed? Back when I first reviewed these jigs, they were […]

Can You Still Build an 80% 1911 in 2025 for under $400? Here’s What It Took Me Then—and What It Takes Now There are two kinds of gun builds: the ones you enjoy, and the ones that make you question every life decision that brought you there. This was the latter. Back in 2020, I […]

Trouble with your 1911? Learn how to diagnose and fix common issues fast—feeding, ejection, accuracy, and reliability problems.

Curious about the Terminator T3 Muzzle Brake? Struggling with recoil while mastering long-range shooting? In today’s video, we review the Terminator T3 muzzle brake and show how it tames recoil and boosts accuracy for precision shooters. Whether you’re dialing in at the range or improving your hunting setup, this video will help you take control […]

Looking to enhance your shotgun with a durable and customizable handguard? In this video, I review the Strike Industries VOA handguard, a tough all-metal upgrade perfect for tactical and home defense setups. Built from 6061 aluminum, this handguard is lightweight, highly corrosion-resistant, and manages heat efficiently. I’ll walk you through its features, benefits, and some […]

In this video, I upgrade the safety on my Mossberg 500 with the NDZ Performance Tactical Safety Kit. The plastic factory safety had to go, and this billet aluminum safety was the perfect replacement. I walk you through the installation process, show how easy it is to manipulate even with gloves, and highlight its durability […]

Experiencing issues with your Mossberg 500? This guide offers solutions for common problems like feeding failures, ejection issues, misfires and more

Optics Mounting DIY Guide: A framework of zeroing optics Introduction Optics significantly improve a firearm’s accuracy for hunting, competitive shooting, or just for fun at the range. Proper installation and zeroing of your scope or red dot sight are critical for optimal performance. This guide will provide you a framework to follow regardless of your […]

Our fixing frame damage on a Polymer80 video will show you how to fill in the damage from a Dremel should it slip when cutting off the tabs. If you find our videos helpful please consider supporting us for free by using our affiliate banners and links on www.trb.fyi or by donating by becoming a […]