AR-15 Pistol Upper Barreled Assembly 10.5″ Options

New Mexico Weapons high suggests the use of 10.5″ upper assemblies for AR-15 Pistol builds. The 10.5″ barrel length allows the length needed for a carbine length gas system vs. a pistol length gas system. This results in half the pressure forcing the bolt back greatly reducing felt recoil.

The two other benefits are […]