Sons of Liberty Gun Works Broadsword 89 V2, Upper Receiver, 556NATO, 13.7 Pinned (16.5 OAL), B&T Surefire Rotex Compatible Flash Hider, Low Profile Gas Block, Black M4L89BSUPPER-13.7-556-SF
The L89BS (Broadsword) uppers include 7-sided L89 rails with Titanium barrel nuts and integral QD cups, BROADSWORD upper receivers, 4150CMV barrels, low profile gas blocks, and include the muzzle device. Bolt Carrier Groups and Charging Handles are NOT included.
