
AR-15 Complete Uppers
Shop for our AR-15 Complete Uppers available in many popular AR-15 calibers. Each high-quality AR15 complete upper assembly comes with an upper receiver, M-LOK rail, flash hider, and AR-15 barrel. Find complete pistol and rifle AR-15 complete upper receivers available in various barrel lengths, twist rates, barrel contours, and gas systems. Ar15upperparts.com AR15 uppers are built with the finest steel and aluminum. The AR 15 Uppers are designed for high performance at a great price.