Info from Geissele
The Super Duty Pistol features the latest in firearms technology available exclusively from Geissele Automatics. This 11.5” pistol chambered in 5.56mm features a Nanocoated Surefire Closed-Tine Flash Hider mounted to an in-house 11.5”, durable black oxide coated, Cold Hammer Forged, Chrome Lined, 1-7 twist, Geissele barrel. Our barrels are precision machined and cold hammer forged utilizing the highest quality materials at our state of the art facility in North Wales, PA. The Carbine gas system and Geissele Super Compact Gas Block (with bomb-proof installation) ensures reliability and optimal performance in extreme conditions and heavy use.
At the heart of this pistol is the Geissele Reliability Enhanced Bolt Carrier Group. The Nanoweapon coated BCG features a properly torqued and staked, chrome lined gas key. The Cam Pin is machined from advanced, medical steel known as H13, which is also coated with Nanoweapon for maximum corrosion and wear resistance. The Reliability Enhanced Bolt Carrier Group also features extended upper rails, providing greater stability and dramatically increasing feeding reliability.
The Reliability Enhanced Bolt Carrier Group comes with the Geissele Stressproof Bolt. Made from Carpenter 158+, directly developed with Carpenter Steel metallurgists to create a material that is cleaner and has fewer impurities. This makes our Stressproof bolt stronger and more fatigue resistant. The Geissele Stressproof bolt is also forged, not machined from bar stock. This allows us to optimize the grain structure of the steel to yield a bolt capable of 5 times the life of a Mil-Spec bolt. Each bolt is rigorously inspected, high pressure tested, mag particle inspected and Nanoweapon coated.
Rounding up the package is a 10.5” MK16 Super Modular Rail that mates to the Super Duty Upper Receiver via a center aligning tab that removes any chance of rail rotation. The MK16 family of rails are renowned by operators for their performance and comfort. An Airborne Charging Handle ensures smooth and reliable operation.