From Iraqveteran8888, “In this video, we test various AR-15 magazines for function in order to find the top contenders for an upcoming magazine torture test. The magazines tested include many new production mags as well as some that are more obscure or simply older patterns. All of these magazines are available on the market in some form or another, and common street prices are provided in the video.”
“The test firearm is a custom AR Pistol chambered in 5.56X45mm, featuring the Dolos Removable Barrel System available from Copper Custom Armament.“