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The Super Duty® MOD1-A builds on the proven MOD1 platform with fully ambidextrous controls, delivering enhanced control in demanding shooting environments. Utilizing the same intuitive layout found on Geissele’s GFR and MRGG rifles, the MOD1-A is engineered for efficiency, speed, and reliability.
Ambidextrous magazine and bolt controls streamline reloads and malfunction clearances for both left- and right-handed shooters, improving consistency under pressure. A refined control layout enhances mechanical flow, whether shooting on the move or from the bench.
The Geissele CHF barrel and Forged Stressproof Bolt® are both HPT and MPI tested, working together to provide exceptional durability and match-grade accuracy. The Stressproof Bolt®, made from Carpenter 158+, offers increased strength and fatigue resistance compared to mil-spec bolts.
A tuned gas system, Super Compact Gas Block, and Super 42® braided buffer spring reduce recoil while ensuring reliable cycling. Additional features include the SSA-E X® two-stage trigger, HUXWRX Flash Hider-QD, MK16 rail, B5 SOPMOD stock, and A17 grip, delivering a balanced blend of performance, ergonomics, and modularity.
FEATURES
- Fully ambidextrous Super Duty® billet lower receiver
- Reliability Enhanced Bolt Carrier Group with Geissele Stressproof Bolt®
- Cold Hammer Forged, chrome-lined barrel with Geissele tapered profile
- Mid-length gas system with Super Compact Gas Block
- 13.5" MK16 rail with Geissele Center Tab interface
- Super 42® braided buffer spring with H2 buffer for reduced recoil
- SSA-E X® two-stage trigger with Lightning Bow®
- Airborne Charging Handle (ACH®)
- HUXWRX Flash Hider-QD compatible with FLOW suppressor series
- B5 Systems Enhanced SOPMOD stock
- Geissele A17 grip
- Mil-spec buffer tube with Geissele QD endplate
SPECIFICATIONS
- Caliber: 5.56mm
- Color: Black
- Length (Collapsed): 32"
- Length (Extended): 35.25"
- Weight: Approx. 6.7 lbs
- Upper Receiver: Super Duty M4 Upper
- Lower Receiver: Super Duty Ambidextrous Billet Lower
- Barrel: 14.5" CHF, chrome-lined, 1:7 twist (pinned & welded)
- Gas Length: Mid-Length
- Gas Port Size: .076"
- Rail: 13.5" MK16
- Bolt: Geissele Stressproof Bolt®
- Muzzle Thread: 1/2 x 28
- Muzzle Device: HUXWRX Flash Hider-QD 556
- Trigger: SSA-E X®
- Safety: Super Configurable Safety Selector
- Lower Parts Kit: Ultra Duty®
- Buffer Tube: Mil-Spec 6-Position, 7075-T6
