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    Geissele Automatics

    GA-08-543B

    Super Duty MOD1 Complete Upper, 10.3, 5.56mm

    Super Duty MOD1 Complete Upper, 10.3, 5.56mm

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    Geissele Automatics Super Duty MOD1 Complete Upper, 10.3, 5.56mm


    The Super Duty MOD1 is the current evolution of the Super Duty platform, incorporating continuous design development to provide superior ergonomics and modularity while maintaining the legendary balance of performance and reliability. Both the Geissele CHF barrel and Forged Stressproof Bolt are High-Pressure Tested (HPT) and Magnetic Particle Inspected (MPI), and work in concert to achieve unmatched dependability with match-grade accuracy. The Forged Stressproof Bolt® is made from Carpenter 158+, directly developed with Carpenter Steel metallurgists to create a material that is cleaner and has less impurities. This makes the Stressproof Bolt stronger and more fatigue resistant, capable of 5 times the life of a mil-spec bolt. 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 HUXWRX Flash Hider-QD muzzle device, offering seamless compatibility with the innovative HUXWRX FLOW series. Rounding out the MOD1 complete upper receiver group, the well-vetted center-tab mated MK16 rail features stainless steel QD inserts to reinforce sling attachment. The Airborne Charging Handle provides ambidextrous use and accessibility and while maintaining a lower profile to eliminate snagging on gear.

    5.56mm upper assembly with 10.3 inch CHF chrome lined barrel 1 in 7 twist Geissele profile barrel with carbine length gas system Super Duty upper receiver with cam pin cut out Nanoweapon reliability enhanced bolt carrier group Geissele Stressproof bolt with asymmetric cam pin 9.3 inch MK16 rail with Geissele center tab Airborne charging handle for fast manipulation HUXWRX QD 556 flash hider with 1 2 x 28 muzzle thread Overall length 19.5 inches and weight 3 lb 7 oz Available in Black or DDC

    MPN: 08-543B
    UPC: 810081133753
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