--- title: "Geissele Automatics Super Duty MOD1 5.56 NATO Firearm" description: "Black 5.56 NATO Super Duty MOD1 with an 11.5\" barrel, 10.5\" MK16 rail, SSA-E X trigger, SBA3 brace, and HUXWRX Flash Hider-QD. No magazine." canonical_url: "https://www.kygunco.com/product/geissele-super-duty-mod-1-pistol-5.56-11.5-w-brace-black" meta: author: KYGUNCO "og:description": "Black 5.56 NATO Super Duty MOD1 with an 11.5\" barrel, 10.5\" MK16 rail, SSA-E X trigger, SBA3 brace, and HUXWRX Flash Hider-QD. No magazine." "og:image": "https://cdn.kygunco.com/assets/products/282145/thumbnail.jpg?v=1760990845" "og:image:height": "500" "og:image:width": "500" "og:title": "Geissele Automatics Super Duty MOD1 5.56 NATO Firearm" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Guns](https://www.kygunco.com/category/shooting/guns) / [Handguns](https://www.kygunco.com/category/shooting/guns/handguns) / [Semi-Auto](https://www.kygunco.com/category/shooting/guns/handguns/semi-auto) / GSS-08-561B ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/282145/main.jpg?v=1760990845) For illustration purposes only, this image may not be an exact representation of the product. # GEISSELE Super Duty MOD1 5.56 NATO 11.5" - Black - NO MAG The Geissele Super Duty MOD1 is a black 5.56 NATO firearm with an 11.5" barrel, 10.5" MK16 rail, SSA-E X two-stage trigger, HUXWRX Flash Hider-QD, SBA3 brace, and Nanoweapon-coated Reliability Enhanced Bolt Carrier Group. It includes no magazine. See Price In Cart ** 5 interest-free payments of **$376.40** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$177.96**/month with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** Ships To FFL Dealer Handled by our expert shippers in Bardstown, KY. ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Item # 282145 Style GSS-08-561B UPC 810081134514 Condition New Manufacturer [Geissele Automatics](https://www.kygunco.com/brand/geissele) Model Super Duty MOD1 Caliber 5.56 NATO Action Semi-Auto Barrel Length 11.5 in 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. 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 High-Pressure Tested (HPT) and Magnetic Particle Inspected (MPI), 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 Compact Gas Block, fine-tuned gas port sizing and Super 42® braided buffer spring. 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. At your fingertip is the SSA-E X® two-stage trigger, which provides unrivaled control and performance with a wide-body Lightning Bow® shape and Nanoweapon®-coated components. Purpose-driven controls, like the ambidextrous Super Configurable Safety and Airborne Charging Handle, checkered magazine release and Maritime Bolt Catch provide superior interfacing with the platform. Rounding out the MOD1, the well-vetted center-tab mated MK16 rail and SB Tactical SBA3 brace uphold the exceptional ergonomics the Super Duty is known for. The MOD1 enhances handling with the modernized A17 grip, and improves on modularity with the incorporation of the Geissele Quick Disconnect (QD) Sling Mount Endplate and stainless steel QD inserts on the MK16 rail. Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. - LENGTH COLLAPSED: 27 3/4" - LENGTH EXTENDED: 30 3/8" - WEIGHT: Approx. 6 lbs - CALIBER: 5.56MM - COLOR: Black - LOWER RECEIVER: Super Duty Lower Mil-Spec - UPPER RECEIVER: Super Duty M4 Upper - BOLT CARRIER GROUP: Reliability Enhanced Bolt Carrier Group - BOLT: Geissele Stressproof Bolt® - RAIL: 10.5" MK16 w/ Geissele Center Tab ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Don't Forget Your Ammo ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/geissele-super-duty-mod-1-pistol-5.56-11.5-w-brace-black#webpage","@type":"WebPage","description":"Black 5.56 NATO Super Duty MOD1 with an 11.5\" barrel, 10.5\" MK16 rail, SSA-E X trigger, SBA3 brace, and HUXWRX Flash Hider-QD. 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