The Geissele Super Duty MOD1 14.5" Desert Dirt Color Complete Upper delivers hard-use tactical performance built to the rigorous standards of premium defensive and duty carbine setups. This factory-assembled upper receiver group centers around a 14.5-inch cold hammer-forged, chrome-lined barrel with a versatile 1:7 twist rate for stabilizing heavy projectile match ammo. Forged from robust 7075-T6 aluminum, the receiver houses Geissele's signature Reliability Enhanced Bolt Carrier Group coated in an ultra-hard, corrosion-resistant Nanoweapon finish. The handguard is a 13.5-inch MK16 Super Modular Rail featuring M-LOK slots across multiple axes to comfortably host tactical lights, lasers, and rail panels. Pin and welded to the muzzle is a Surefire SOCOM closed-tine flash hider, which brings the barrel over the legal 16-inch civilian threshold while offering a rock-solid mounting foundation for suppressors. Geissele Automatics Geissele Super Duty MOD1 5.56mm NATO 1:7 14.5" Bbl Desert Dirt Color Complete Upper Receiver Group w/SOCOM Closed-Tine Flash