PRECISION AR15, AR10, & 9MM UPPERS custom builds your AR15, AR10/LR308 or AR9/PCC Upper Assembly in rifle and pistol lengths (from 7.5" to 24") using only the highest quality components from the best US manufacturers.  You can choose the rail, muzzle device and other options for each upper assembly.  The bolt carrier group (BCG), charging handle, and magazines can be added to each upper assembly in the cart. offers a wide range of popular AR15, AR10/LR308 and AR9/PCC calibers including 223/556, 223 Wylde, 300 Blackout, 7.62x39, 204 Ruger, 224 Valkyrie, 350 Legend, 308 WIN, 6.5 Creedmoor, and 9mm.  Our components conform to Mil-Spec and SAMMI specifications ensuring reliable operation.