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

The Patrol-SL upper receiver groups are built to the same exacting standards as the rest of the Sons of Liberty Gun Works 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.