Sons of Liberty Gun Works L89 AR-15 8.5 inch .300BLK Upper Receiver Group

Sons of Liberty Gun Works L89 Upper Receiver Group for AR-15 in .300 AAC Blackout with an 8.5\" barrel. Overview The L89 Upper Receiver Groups are forged uppers built to SOLGW standards, with Liberty Fighting Barrels, SOLGW 4140 gas block, and nitrided gas tube. The L89 rails feature 7-sided MLOK slots with integral QDs at the barrel nut on the left and right. The L89 uses the Drivelock barrel nut system with anti-rotation tabs and an internal dowel pin between upper and rail to provide a solid lockup with minimal POI shifts for attached lasers or other accessories. Specifications - Caliber: .300 AAC Blackout - Barrel Length: 8.5 in - Barrel Profile: Medium - Barrel Twist Rate: 1-7 - Finish: Anodized - Color: Black - Fabric/Material: 416 Stainless Steel - Gun Make: AR Platform - Gun Model: AR-15 - Bolt Carrier Group Included: No - Charging Handle Included: No Package Contents - Sons of Liberty Gun Works L89 AR-15 8.5 inch .300BLK Upper Receiver Group Compatibility - Compatible with AR-15