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:
Rifleshooter.com Review: Dewey AR-15/M-16 Cleaning Kit Pull-through cleaning kits have been around for some time. Lately, they seem to be gaining popularity. The obvious advantage of this kind of kit is the small space they […]