Description
This is a serialized firearm and ships to a licensed dealer near you. How an FFL transfer works.
Arizona residents: this item passes through our Chandler shop on its way out, so you are welcome to collect it here instead and avoid the shipping charge. Choose local pickup at checkout and we will arrange a time.
The Super Duty MOD1-A keeps the MOD1 platform and adds fully ambidextrous controls, using the layout from Geissele’s GFR and MRGG rifles.
A magazine release sits on the left of the receiver below the Maritime Bolt Catch for left-handed reloads. On the right, bolt catch and release buttons sit below the ejection port – the dust cover applies pressure to lock the bolt open, and a button just behind it sends the bolt forward.
What sets the 300 Blackout version apart is the patented Phased Array gas system with Tri-Port, which balances gassing without needing an adjustable gas block. With the braided buffer spring, that is what lets it run suppressed or unsuppressed, on supersonic or subsonic ammunition, without adjustment.
The rest is Super Duty MOD1-A: Nanoweapon-coated Reliability Enhanced BCG with the forged Carpenter 158+ Stressproof Bolt, SSA-E X two-stage trigger with Lightning Bow, Airborne Charging Handle, MK16 rail with centre tab, Ultra Duty lower parts kit, Super Configurable Safety, A17 grip and Geissele QD sling endplate.
Specification
| Caliber | 300 Blackout |
|---|---|
| Barrel | 8″ cold hammer forged, chrome lined, Geissele tapered profile, 1:7 twist |
| Gas system | Custom pistol length, Phased Array with Tri-Port |
| Gas block | Antistrike Super Compact |
| Upper receiver | Super Duty M4 |
| Lower receiver | Super Duty ambidextrous billet, 300 BLK |
| Bolt carrier group | Reliability Enhanced with Geissele Stressproof Bolt |
| Rail | 7″ MK16 with Geissele centre tab |
| Trigger | SSA-E X with Lightning Bow |
| Safety | Super Configurable Safety Selector |
| Charging handle | Airborne Charging Handle (ACH) |
| Muzzle device | HUXWRX Flash Hider-QD 762, 5/8×24 thread |
| Lower parts kit | Ultra Duty |
| Buffer | Mil-spec braided spring with H1 buffer |
| Buffer tube | 7075-T6 mil-spec with QD endplate |
| Brace | SB Tactical SBA3 |
| Grip | Geissele A17 |
| Length | 24″ collapsed, 26.75″ extended |
| Weight | approx. 5.4 lbs |
Before you buy
- The optic, scope mount and magazine are not included.
- This is a pistol, not a rifle. Adding a stock changes its legal classification.
A note on finish. Geissele use Type 3 Hardcoat Anodize, which means there is no exact color matching between parts and some shade variation is normal. Two parts bought at different times can differ slightly. More on anodize shade variation and finish methods.
Geissele builds to order rather than holding reseller stock. Firearms, uppers, barrels and bolts carry a factory lead time of roughly 15 to 25 weeks depending on the product — please order with that timeline in mind. Some orders ship sooner. We confirm timing when your order is placed — see our backorder policy.
Suppressor ready
This rifle ships with a HUXWRX Flash Hider-QD, which is an approved HUXWRX mount. A HUXWRX FLOW suppressor mounts to it directly – no adapter to buy, and the suppressor warranty stays intact. HUXWRX only warranty their suppressors when mounted on approved hardware.
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