Geissele Automatics Geissele Super Duty 5.56mm 14.5" Heavy Bbl (.750 Journal) DDC Stripped Upper Receiver (No Charging Handle, Muzzle Device, or BCG)

The Geissele Super Duty 14.5" Heavy Barrel (.750 Journal) DDC Stripped Upper Receiver is a premium AR-15 upper foundation built around a rugged cold hammer forged, chrome-lined 14.5-inch barrel with a .750″ gas journal and 1:7 twist for reliable performance across a wide range of 5.56 NATO ammunition. Featuring a mid-length gas system with a Super Compact gas block, this stripped upper arrives without charging handle, BCG, muzzle device, or handguard — giving you the flexibility to finish the build with your preferred components. With a Distressed Diamond Cut finish and Picatinny rail on the receiver for optics and accessories, the 08-661S is ideal for custom precision, duty, or hard-use AR builds when matched with a compatible lower receiver and supporting parts. Geissele Automatics Geissele Super Duty 5.56mm 14.5" Heavy Bbl (.750 Journal) DDC Stripped Upper Receiver (No Charging Handle, Muzzle Device, or BCG)