Sons of Liberty Gun Works L89 AR-15 11.5 inch 223 Wylde Upper Receiver Group

The Sons of Liberty Gun Works L89 Upper Receiver Groups are built using forged upper receivers, Liberty Fighting Barrels with SOLGW 4140 gas block and nitrided gas tube. Uppers feature 7-sided MLOK rails with integral QDs at the barrel nut, the Drivelock barrel nut system, anti-rotation tabs, and an internal dowel pin between upper and rail for solid lockup. Specifications include caliber .223 Wylde, barrel length 11.5 in, barrel profile Medium, gas system Carbine Length, barrel twist rate 1-7, muzzle device A2 Flash Hider, finish Anodized, color Black, handguard length 10.75 in. Bolt Carrier Group Included: No. Charging Handle Included: No.