Geissele Automatics Geissele Super HBAR MOD1 Complete Upper 5.56mm 14.5″ Bbl (.812 Journal, 5/8×24) P&W Black Complete Upper Receiver 08-616B

The Geissele Super HBAR MOD1 14.5″ Complete Upper in Black is a heavy-barrel upper receiver assembly built for precision, durability, and hard use on AR-15 style platforms. Featuring a robust .812″ gas journal heavy barrel that is cold hammer forged and chrome lined, it’s optimized for extended accuracy and heat capacity while maintaining reliable cycling via a mid-length gas system and Super Compact gas block. The full-length MK16 M-LOK free-float rail provides a rigid modular platform for optics and accessories, and the upper is compatible with standard AR-15 lowers. Threaded 5/8×24 for muzzle devices, this complete upper is ideal for custom rifle builds where enhanced barrel stability and accuracy are priorities. Geissele Automatics Geissele Super HBAR MOD1 Complete Upper 5.56mm 14.5″ Bbl (.812 Journal, 5/8×24) P& W Black Complete Upper Receiver 08-616B