SPIKE'S PSTL 556NATO 8.1 BI-AXIAL

Spike's Tactical Bi-Axial, Semi-automatic, AR Pistol, 223 Remington/556NATO, 8.1 Cold Hammer Forged Barrel, A2 Flash Hider, Black, 7 M-LOK handguard, Aviator Arms Bi-Axial Recoil Device, No Magazine STP5121-CM7F When your in need of something super compact" we got you! Our new build with the Aviator Arms X-1 recoil system results in a super short" soft shooting pistol. This recoil system attaches to the upper receiver and has an internal spring. We helped with development of the indicator attachment" it is a sliding indicator you can attach to the recoil unit so you know the distance the BCG will come out of the back. If you prefer to not use it" it is also detachable with 3 supplied screws.