Geissele Automatics Super Duty SBR .300 Blackout 8" - AR-15 Rifle

Professional-grade in 5.56 NATO and uncompromising in construction — the Geissele Automatics Super Duty SBR .300 Blackout 8" is built for users who demand the same reliability from their rifle that Special Operations personnel depend on daily.

Chambered in 5.56 NATO and running a direct impingement system, the Geissele Automatics Super Duty SBR .300 Blackout 8" is a semi-automatic AR-15 rifle engineered for consistent performance across a wide range of applications.

Built Beyond Mil-Spec: Mil-spec is the minimum acceptable standard; this 5.56 NATO AR-15 rifle exceeds it throughout. Components are selected for the tightest tolerances and best available materials, not the lowest cost.

Consistent Performance Under Pressure: Reliability when conditions are bad, ammunition is dirty, and the rifle is hot is what separates professional-grade platforms from recreational ones. This rifle delivers that consistency.

Match-Accurate Architecture: Cold hammer forged or precision button-rifled barrels, hand-fitted components, and proper headspace ensure accuracy that outlasts most optics mounted on it.

Professional Pedigree: The same manufacturing standards that supply military and law enforcement contracts go into every 5.56 NATO rifle that comes off this line — civilian availability, professional build quality.

• Caliber: 5.56 NATO
• Barrel Length: 8"
• Barrel Twist: 1:7"
• Gas System: Direct Impingement
• Handguard: Free-Float
• Muzzle Threading: 5/8x24
• Magazine Capacity: 30-Round
• Finish: Type III Hardcoat Anodized
• Origin: Made in the USA

Accepts all STANAG-pattern 5.56 NATO magazines and pairs with any mil-spec AR-15 lower receiver. Compatible with standard carbine buffer systems and mil-spec lower parts kits.

Built from 7075 aluminum with a Type III Hardcoat Anodized finish, this AR-15 rifle holds up to sustained use without sacrificing dimensional accuracy or function.

Built for professional duty use, serious home defense, and competition. Trusted by law enforcement, military personnel, and competitive shooters who won't settle for anything less.

Geissele Automatics is synonymous with precision — their Super Duty and Freedom Rifle platforms are actively used by U.S. Special Operations units and trusted by professional users worldwide. Made in the USA.