--- title: "GEISSELE Super Duty Mod 1 5.56 NATO 14.5\" SBR - DDC" canonical_url: "https://www.kygunco.com/product/geissele-super-duty-mod-1-5.56-nato-14.5-sbr-ddc" meta: author: KYGUNCO "og:image": "https://cdn.kygunco.com/assets/products/282182/thumbnail.jpg?v=1792429681" "og:image:height": "500" "og:image:width": "500" "og:title": "GEISSELE Super Duty Mod 1 5.56 NATO 14.5\" SBR - DDC" --- > 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) / [Class III](https://www.kygunco.com/category/shooting/guns/class-iii) / [Short Barrel Rifles](https://www.kygunco.com/category/shooting/guns/class-iii/short-barrel-rifles) / GSS-08-520S ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/282182/main.jpg?v=1792429681) For illustration purposes only, this image may not be an exact representation of the product. # GEISSELE Super Duty Mod 1 5.56 NATO 14.5" SBR - DDC See Price In Cart ** 5 interest-free payments of **$418.40** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** NFA / Class 3 NFA transfer requirements vary by product and location. Additional documentation, approvals, or a qualified dealer may be required. Check local and state regulations to ensure eligibility and compliance before purchasing. ** 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 # 282182 Style GSS-08-520S UPC 810081134897 Condition New Manufacturer [Geissele Automatics](https://www.kygunco.com/brand/geissele) Model Super Duty MOD1 Caliber 5.56 NATO Action Semi-Auto Barrel Length 14.5 in The **Geissele Super Duty® MOD1 SBR** in 5.56mm features a 14.5″ cold hammer-forged, chrome-lined barrel and Desert Dirt Color (DDC) finish. Built on the Super Duty platform, the MOD1 combines Geissele's enhanced bolt carrier group, balanced mid-length gas system, and premium components with updated ergonomics and modularity. The MOD1 features Geissele's Forged Stressproof Bolt®, manufactured from Carpenter 158+ steel, along with a Super Compact Gas Block and Super 42® braided buffer spring with H2 buffer. Its 13.5″ MK16 rail incorporates stainless steel QD inserts, while the HUXWRX Flash Hider-QD provides compatibility with HUXWRX FLOW series suppressors. Additional features include the SSA-E X® two-stage trigger with Lightning Bow®, ambidextrous controls, B5 Systems Enhanced SOPMOD stock, and Geissele A17 grip. Key Features - **14.5″ Cold Hammer-Forged Barrel:** Chrome-lined construction with Geissele tapered profile and 1:7 twist - **Forged Stressproof Bolt®:** Manufactured from Carpenter 158+ steel and HPT/MPI tested - **Reliability Enhanced Bolt Carrier Group:** Designed for dependable operation - **Mid-Length Gas System:** Features a Super Compact Gas Block and balanced gas port sizing - **13.5″ MK16 Rail:** Features Geissele Center Tab and stainless steel QD inserts - **SSA-E X® Trigger:** Two-stage trigger with Lightning Bow® design and Nanoweapon®-coated components - **HUXWRX Flash Hider-QD:** Compatible with HUXWRX FLOW series suppressors - **Ambidextrous Controls:** Super Configurable Safety Selector and Airborne Charging Handle - **Super 42® Buffer System:** Braided buffer spring paired with an H2 buffer - **B5 Systems Enhanced SOPMOD Stock:** Adjustable stock mounted on a six-position buffer tube - **Geissele A17 Grip:** Updated grip design for improved ergonomics - **Desert Dirt Color Finish:** DDC configuration Specifications - **Manufacturer:** Geissele Automatics - **Model:** Super Duty® MOD1 SBR - **Manufacturer SKU:** 08-520S - **Caliber:** 5.56mm - **Barrel Length:** 14.5″ - **Barrel:** Cold Hammer-Forged, Chrome-Lined, Geissele Tapered Profile - **Twist Rate:** 1:7 - **Gas System:** Mid-Length - **Gas Block:** Super Compact Gas Block - **Gas Port Size:** .076″ - **Upper Receiver:** Super Duty M4 Upper - **Lower Receiver:** Super Duty Mil-Spec Lower - **Bolt Carrier Group:** Reliability Enhanced Bolt Carrier Group - **Bolt:** Geissele Stressproof Bolt® - **Handguard:** 13.5″ MK16 with Geissele Center Tab - **Charging Handle:** Airborne Charging Handle (ACH®) - **Muzzle Device:** HUXWRX Flash Hider-QD 556 - **Muzzle Thread:** 1/2 x 28 - **Trigger:** SSA-E X® with Lightning Bow® - **Safety:** Super Configurable Safety Selector - **Lower Parts Kit:** Ultra Duty® Lower Parts Kit - **Buffer Assembly:** Super 42® with H2 Buffer - **Buffer Tube:** Mil-Spec Six-Position 7075-T6 with Geissele QD Endplate - **Stock:** B5 Systems Enhanced SOPMOD - **Grip:** Geissele A17 - **Color:** Desert Dirt Color (DDC) - **Collapsed Length:** 32″ - **Extended Length:** 35 1/4″ - **Weight:** Approximately 6.7 lbs - **Magazine:** Not Included - **Optic and Scope Mount:** Not Included ** 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-1-5.56-nato-14.5-sbr-ddc#webpage","@type":"WebPage","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"GEISSELE Super Duty Mod 1 5.56 NATO 14.5\" SBR - DDC","url":"https://www.kygunco.com/product/geissele-super-duty-mod-1-5.56-nato-14.5-sbr-ddc","about":{"@id":"https://www.kygunco.com/product/geissele-super-duty-mod-1-5.56-nato-14.5-sbr-ddc#/schema//kygunco"},"breadcrumb":{"@id":"https://www.kygunco.com/product/geissele-super-duty-mod-1-5.56-nato-14.5-sbr-ddc#breadcrumb"},"isPartOf":{"@id":"https://www.kygunco.com/#website"},"potentialAction":[{"@type":"ReadAction","target":["https://www.kygunco.com/product/geissele-super-duty-mod-1-5.56-nato-14.5-sbr-ddc"]}]},{"@id":"https://www.kygunco.com/#/schema/organization/kygunco","alternateName":"Kentucky Gun Company","currenciesAccepted":"USD","description":"Shop KYGUNCO for firearms, ammo, gun parts, optics, shooting accessories, and outdoor gear with online ordering and shipping options across the U.S.","email":"info@kygunco.com","foundingDate":"1946-01-01","hasMap":"https://www.google.com/maps/dir/?q=place_id:ChIJfwecWCBSaIgRguIjuoPha40","logo":"https://www.kygunco.com/logos/kygunco.svg","name":"KYGUNCO","priceRange":"$$","telephone":"+1-502-348-3594","url":"https://www.kygunco.com","@type":["Organization","LocalBusiness"],"address":{"@type":"PostalAddress","streetAddress":"401 Glenwood Drive","addressLocality":"Bardstown","addressRegion":"KY","postalCode":"40004","addressCountry":"US"},"contactPoint":{"@type":"ContactPoint","contactType":"Customer Service","telephone":"+1-502-348-3594","email":"info@kygunco.com","availableLanguage":"English","hoursAvailable":{"@type":"OpeningHoursSpecification","dayOfWeek":["https://schema.org/Monday","https://schema.org/Tuesday","https://schema.org/Wednesday","https://schema.org/Thursday","https://schema.org/Friday"],"opens":"09:00","closes":"17:00"}},"geo":{"@type":"GeoCoordinates","latitude":37.8032518,"longitude":-85.4252895},"hasMerchantReturnPolicy":{"@type":"MerchantReturnPolicy","name":"Standard Return Policy","inStoreReturnsOffered":true,"merchantReturnDays":30,"returnPolicyCategory":"https://schema.org/MerchantReturnFiniteReturnWindow","returnMethod":["https://schema.org/ReturnByMail","https://schema.org/ReturnInStore"],"returnFees":"https://schema.org/FreeReturn","refundType":["https://schema.org/ExchangeRefund","https://schema.org/FullRefund","https://schema.org/StoreCreditRefund"],"applicableCountry":"US"},"hasOfferCatalog":{"@type":"OfferCatalog","name":"KYGUNCO Catalog","url":"https://www.kygunco.com/search"},"image":{"@id":"https://www.kygunco.com/#/schema/image/1"},"knowsAbout":["Firearms sales and transfers","FFL dealers and compliance","Optics and accessories","Outdoor and hunting equipment"],"openingHoursSpecification":[{"@type":"OpeningHoursSpecification","dayOfWeek":["https://schema.org/Monday","https://schema.org/Tuesday","https://schema.org/Wednesday","https://schema.org/Thursday","https://schema.org/Friday","https://schema.org/Saturday"],"opens":"09:00","closes":"18:00"}],"paymentAccepted":["Credit Card","Credova","Sezzle"],"sameAs":["https://x.com/kygunco","https://www.facebook.com/kentuckygunco","https://www.instagram.com/kygunco","https://www.youtube.com/@thekentuckygunco","https://rumble.com/c/KYGUNCO"]},{"@id":"https://www.kygunco.com/product/geissele-super-duty-mod-1-5.56-nato-14.5-sbr-ddc#product","@type":"Product","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","gtin":"810081134897","mpn":"08-520S","name":"GEISSELE Super Duty Mod 1 5.56 NATO 14.5\" SBR - DDC","sku":"282182","additionalProperty":[{"@type":"PropertyValue","name":"Model","value":"Super Duty MOD1"},{"@type":"PropertyValue","name":"Caliber","value":"5.56 NATO"},{"@type":"PropertyValue","name":"Action","value":"Semi-Auto"},{"@type":"PropertyValue","name":"Barrel Length","value":"14.5 in"}],"brand":{"@type":"Brand","name":"Geissele Automatics"},"image":["https://cdn.kygunco.com/assets/products/282182/thumbnail.jpg?v=1792429681"],"mainEntityOfPage":{"@id":"https://www.kygunco.com/product/geissele-super-duty-mod-1-5.56-nato-14.5-sbr-ddc#webpage"},"offers":{"@type":"Offer","availability":"https://schema.org/OutOfStock","price":2091.99,"priceCurrency":"USD","url":"https://www.kygunco.com/product/geissele-super-duty-mod-1-5.56-nato-14.5-sbr-ddc","itemCondition":"https://schema.org/NewCondition","priceValidUntil":"2027-12-30T00:00:00.000Z"}},{"@id":"https://www.kygunco.com/product/geissele-super-duty-mod-1-5.56-nato-14.5-sbr-ddc#breadcrumb","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","name":"Home","item":"https://www.kygunco.com","position":1},{"@type":"ListItem","name":"Shooting","item":"https://www.kygunco.com/category/shooting","position":2},{"@type":"ListItem","name":"Guns","item":"https://www.kygunco.com/category/shooting/guns","position":3},{"@type":"ListItem","name":"Class III","item":"https://www.kygunco.com/category/shooting/guns/class-iii","position":4},{"@type":"ListItem","name":"Short Barrel Rifles","item":"https://www.kygunco.com/category/shooting/guns/class-iii/short-barrel-rifles","position":5},{"@type":"ListItem","name":"GSS-08-520S","position":6}]},{"@id":"https://www.kygunco.com/#/schema/image/1","@type":"ImageObject","contentUrl":"https://cdn.kygunco.com/assets/backdrops/facade.jpg","inLanguage":"en","url":"https://cdn.kygunco.com/assets/backdrops/facade.jpg"}]} ``` ## Sitemap See the full [sitemap](https://www.kygunco.com/sitemap.md) for all pages.