GEISSELE AUTOMATICS Super Duty MOD1 5.56mm NATO 16in Complete Upper (08-548S)

Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15 platform. The Super Duty Complete Upper from Geissele Automatics offers unmatched performance, accuracy and reliability.

Foundational to the renowned quality and performance of this Super Duty system is the in-house produced cold hammer forged, chrome-lined barrel and nanoweapon-coated reliability enhanced Bolt Carrier Group. Both the Geissele CHF barrel and forged stressproof bolt are individually high-pressure tested and magnetic particle inspected, and work in concert to achieve unmatched dependability with match-grade accuracy.

The Super Duty features a precisely balanced gas system, including the bomb-proofed super gas block and fine-tuned gas port sizing, especially when combined with the Geissele Super 42 braided buffer spring (sold separately). These purposefully selected components minimize felt recoil while maintaining reliable cycling, even in adverse conditions. The MOD1 features the signature Nanocoated HUXWRX Flash Hider-QD muzzle device, offering seamless compatibility with the innovative HUXWRX FLOW series.