3 Expo Arms Chrome AR15 BCG Physicals

AR15 Bolt Carrier Group Coatings & Finishes - The Good & Bad

2 Aero Pro BCG Physicals

2 PSA Upper Receiver Autopsies - Part 1/3

M4 vs AK47; which is deadlier?

SRT M4A1 Mimic Clone: Personal rifle

Tech Tip: Ruger 10/22 Basic Maintenance

I 3D-Printed a Glock to See How Far Homemade Guns Have Come

Geissele BCG Physical

Expo arms VS Microbest chrome BCG

Worst Ever BCG AUTOPSY caught on camera. (See description)

How an AR-15 Works

Daniel Defense BCG Physical

Repairing a Remington 1900 Double Barrel Shotgun | MidwayUSA Gunsmithing

Ep-7: How Does the AR-15 Bolt Carrier Group Work? Which One Do You Need?

Anderson BCG Physical

Gun Restoration, Colt M1911 U.S. ARMY 1914, (with test fire).

Why Won't the Ruger Mini-14 Just Die? [Part 1]

Toolcraft BCG Physical

Two Sharps Rifle Company BCG Physicals

How to Disassemble/Reassemble an AR-15 BCG Ejector & Extractor