PSA GEN4 10.5" 9mm 1/10 Nitride 9" Lightweight M-LOK Railed MOE EPT SBA3 Pistol KIT

Palmetto State Armory

Overview

The PSA Gen4 10.5" 9mm Upper Receiver is a complete assembly designed for AR-15 platforms, featuring a 10.5-inch barrel with a 1:10 twist rate that optimally stabilizes 9mm projectiles for enhanced accuracy. This upper receiver allows builders to create compact, maneuverable setups ideal for close-quarters engagements or personal defense. Commonly found in 9mm caliber builds, it's a solid choice for those looking to take advantage of the versatility and reduced recoil of this caliber.