Geissele Automatics Super Duty 14.5″ 5.56 HBAR Heavy Barreled Upper Receiver, Black

Geissele Automatics Super Duty 14.5″ 5.56 HBAR Heavy Barreled Upper Receiver, Black The Geissele Super Duty barreled upper features the guts and components needed for a hard-use rifle. At the heart of this stripped upper is a Super Duty upper receiver that mates to a 13.5″ MK16 Super Modular rail via a center aligning tab, removing any chance of rail rotation. This family of rails is renowned by operators for their performance and comfort. It features an in-house 14.5″, Manganese Phosphate coated, CHF, Chrome Lined barrel with a 1-7 twist rate. Our barrels are precision machined and cold hammer forged at our state-of-the-art facility in North Wales, PA; utilizing the highest quality materials available. This stripped upper is ready to be furnished with your favorite components to ensure an accurate, reliable and soft recoiled shooting experience. No charging handle, bolt carrier group or muzzle device. Specifications Caliber: 5.56mm Color: Black Receiver: Milspec forged Rail: 13.5″ MK16 Super Modular Rail with Center Tab Barrel: 14.5″ Cold Hammer-Forged Barrel, 1:7 Twist, Heavy Profile Gas System: Midlength Gas Block: Super Compact Gas Block Gas Port Size: 0.076″