Geissele Super Duty MOD1 5.56 NATO 16″ Rifle


Caliber- 5.56 NATO

Capacity- 30 + 1 Rounds

Barrel Length- 16″

Twist Rate- 1:7

Rail Type- Free Float MLOK, Picatinny Top Rail

Muzzle Device Type- HUXWRX QD Flash Hider

Sights- Optic Ready

Overall Length- 33-3/4″ – 36-7/8″

Weight- 6lbs, 9oz.

Includes- (1) 30-Round DuraMag

2 in stock

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The Super Duty Mod1 Rifle improves upon the renowned Geissele Super Duty with the addition of a HUXWRX Flash Hider-QD 556 suppressor-ready muzzle device, an updated MK16 Super Modular Rail with press-fit stainless steel Quick Disconnect (QD) inserts, an A17 Grip that presents a more ergonomic grip angle, and a QD Sling Mount Endplate. The SD Mod1 updates several key components that ensure this high-end rifle will continue to offer the user unmatched accuracy, comfort, and performance.

Geissele provides the latest in weapon technology available. This 16” rifle chambered in 5.56mm features a nanoweapon-coated HUXWRX Flash Hider-QD muzzle device mounted to an in-house 16” Manganese Phosphate coated, Cold Hammer Forged, Chrome Lined, 1-7 twist barrel. Geissele barrels are High-Pressure Tested (HPT) and Magnetic Particle Inspected (MPI). The Geissele length gas system and Geissele Super Compact Gas Block (with bomb-proof installation) ensure reliability and optimal performance in extreme conditions and heavy use.

At your fingertip and purpose-built for precision is the SSA-E X with Lightning Bow® trigger. The Nanocoated, two-stage trigger features a wide-body and bow shape that finds the perfect balance between a classic M4 trigger and a flat-body trigger.

At the heart of this rifle is the Geissele Reliability Enhanced Bolt Carrier Group (BCG). Our Nanoweapon-coated carrier features a properly torqued and staked, Chrome Lined, Nanocoated gas key. The Cam Pin is machined from advanced, tool steel known as H13 which is also coated with Nanoweapon for maximum corrosion and wear resistance. The Reliability Enhanced Bolt Carrier Group features extended upper rails, providing greater stability and dramatically increasing feeding reliability.

Additional information


Geissele Automatics


5.56 x 45mm NATO


30 Rounds

Firearm Type