Sons of Liberty Gun Works AR-15 M4 Patrol SL Upper Receiver Assembly 5.56x45mm 13.9" Barrel with HUXWRX XL Flash Hider

Sons of Liberty Gun Works AR-15 M4 Patrol SL Upper Receiver groups are built to the same exacting standards as the rest of the SOLGW product line. These feature 1:7 twist 4150CMV Nitride finished barrels with true 5.56mm NATO chambers, taper pinned F-marked front sight bases, Magpul SL handguards, and a Magpul MBUS3 rear sight included. Add a bolt carrier group and charging handle of your choice, and you're off to the races. FeaturesMagpul SL handguardMagpul MBUS3 rear sightTrue 5.56mm NATO chambers