Lapping an AR15 upper receiver ensures that the barrel is true to the upper receiver by providing a perfectly perpendicular surface for the barrel extension. This task is easily accomplished with a few simple tools and a handheld drill.
For this project, Brownells supplied us with the following:
I am fortunate enough to have some great readers. One of them, Alan, had read Kaboom!!! 300 BLK in 5.56/223 AR-15! and shared that he had experienced a similar incident shortly before I published that […]
Based in the popular EXPS2, the Brownells/EOTech CQB T-Dot Holographic Sight provides the shooter with a 7-yard, 50-200 yard and 500-yard aiming points. Equipped with a quick detach lever, this sight is ready to mount […]