Geissele Super Duty MOD1-A 5.56 NATO Rifle - 13.9" P/W - DDC - No Mags

The Geissele Super Duty MOD1-A is the ambidextrous evolution of the Super Duty MOD1 — every capability of the platform that elite professionals trust, now with fully ambidextrous controls engineered as an integrated system rather than an afterthought, in a 13.9-inch 5.56 NATO rifle in Desert Defense Color (DDC).

The Geissele Super Duty MOD1-A is a semi-automatic 5.56 NATO AR-15 pattern rifle built on a Super Duty ambidextrous billet lower receiver and Super Duty M4 upper receiver, featuring a 13.9-inch cold hammer forged, chrome-lined barrel at 1:7 twist, a 15-inch MK16 rail with Geissele center tab, and factory-installed fully ambidextrous controls throughout. Color: DDC.

The MOD1-A's ambidextrous control system is engineered as a cohesive layout rather than a collection of individual aftermarket add-ons. The left side of the receiver carries a magazine release below the Maritime Bolt Catch for natural left-handed mag changes. The right side provides bolt catch and release buttons below the ejection port — the shooter uses the dust cover to lock the bolt open, and a release button just rearward sends it forward — creating an intuitive, consistent sequence that works under pressure regardless of hand dominance. This is the same layout used in Geissele's GFR and MRGG rifles built for professional users. At the core of the system, the 13.9-inch CHF chrome-lined barrel and Geissele Forged Stressproof Bolt — made from Carpenter 158+ steel developed directly with Carpenter Steel metallurgists for reduced impurities and greater material cleanliness — are both HPT and MPI certified, delivering match-grade accuracy with a bolt rated for five times the service life of a mil-spec component. The precisely tuned Mid-Length gas system, Super Compact Gas Block, and Super 42 braided buffer spring with H2 buffer work together to reduce felt recoil while maintaining reliable cycling across ammunition types and adverse conditions. The SSA-E X two-stage trigger with Lightning Bow and Nanoweapon-coated internals delivers a crisp, predictable break. The HUXWRX Flash Hider-QD at 1/2x28 threads provides full compatibility with the HUXWRX FLOW suppressor series for direct suppressor attachment. The B5 Systems Enhanced SOPMOD stock, Geissele A17 grip, and integrated stainless steel QD inserts complete an ergonomic package optimized for dynamic shooting.

Caliber: 5.56 NATO. Barrel: 13.9" CHF, chrome-lined, Geissele tapered profile, 1:7 twist, Mid-Length gas. Rail: 12.9" MK16 with center tab. Gas block: Super Compact. Gas port: .079". Trigger: SSA-E X with Lightning Bow. Muzzle: HUXWRX Flash Hider-QD 556, 1/2x28. BCG: Reliability Enhanced. Bolt: Geissele Stressproof (Carpenter 158+). Buffer: Super 42 with H2. Stock: B5 Enhanced SOPMOD. Grip: Geissele A17. Safety: Super Configurable Selector. Lower: Super Duty Ambi Billet. Upper: Super Duty M4. Length collapsed: 31 3/4". Length extended: 35". Weight: approx. 6.65 lbs. Color: DDC.

Forged Stressproof Bolt from Carpenter 158+ steel — HPT and MPI certified, rated for 5x the service life of a mil-spec bolt. Fully integrated ambidextrous control layout engineered as a system: ambi mag release, Maritime Bolt Catch, and right-side bolt catch/release in the same layout used on Geissele's professional-grade GFR and MRGG rifles. HUXWRX Flash Hider-QD provides direct-attach HUXWRX FLOW suppressor compatibility.

The right choice for shooters who demand a complete, professionally engineered ambidextrous AR-15 with match-grade components, suppressor-ready muzzle device, and the full Geissele Super Duty component ecosystem in a duty-proven 13.9-inch configuration.