Geissele Super Duty AR-15 Pistol Barreled Receiver 5.56x45mm NATO 11.5" Barrel Black

The Geissele Super Duty Upper (Stripped) features the quality and worksmanship you've come to expect from the Geissele name. ; At the heart of this stripped upper is a Super Duty upper receiver that mates to a 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. Featuring an in-house Mag Phosphated, CHF, Chrome Lined barrel with a 1-7 twist rate. Geissele barrels are precision machined and cold hammer forged at their 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 and soft shooting experience. LENGTHS: 10.3", 11.5", 14.5", 16", and 18" CALIBER: 5.56MM COLOR: Black, OD Green, or DDC RECEIVER: Super Duty Upper BARREL: Geissele Barrel, CHF, Chrome Lined, 1-7 Twist 10.3" and 11.5" Carbine Length Gas Systems 14.5" Mid-Length Gas System 16" Mid-Length Plus Gas System GAS BLOCK: Super Compact Gas Block Contour: Geissele Finish: Anodized Length: 11.5" Make: AR-15 Style: Stripped Twist: 1-7 Cartridge: 5.56 mm NATO Color: Black ;