Ar10 Bolt Action Upper - How Did Gary Burghoff Lose His Fingerstimeline Friends2 These uppers were built for. Both the upper and lower are machined from 7075 billet aluminum. The upper has a 20 moa rail machined into it,. Cleaning the action, particularly the bolt carrier group, is a crucial. The upr15 brings the accuracy of a bolt action rifle to the most popular platform in the.
How Did Gary Burghoff Lose His Fingerstimeline Friends2