Railed Gas System | Carbine Length

This carbine length railed gas system includes a railed gas block, a standard carbine length gas tube and a roll pin. This assembly attaches to the barrel in place of the standard front sight, and its bolt on design doesn't require the drilling and pinning like a standard front sight. Specs Barrel size: .750" Material: .7075 T6 aluminum Coating: Type 3 hard coat anodize Picatinny rail height: .250" below the height of the rail on the receiver. Also knows as "a rail height gas block"