The Geissele Super Gas Block is a non-adjustable gas block designed to fit around the .750-inch diameter mounting bosses standard to AR-15 and AR-10 type firearms. The Geissele Super Gas Block is a beautifully manufactured from 17-4 stainless steel which is not only resistant to corrosion, but also strong enough to handle as many rounds as you want to put through it. That’s performance and manufacturing you can trust.
Each Geissele Super Gas Block is supplied with instructions for both a standard set-screw installation which is a safe durable installation for the casual and target shooter and Geissele’s “bombproof” installation, intended for duty weapons and combat situations so that no amount of abuse will dislodge the SGB once the supplied stainless steel spiral coil pin is in place.
Geissele Automatic proudly manufactures their firearm components and accessories in North Wales, Pennsylvania. Quality workmanship provided by American workers who are also competitive shooters is their hallmark. Geissele’s motto is "We Manufacture Confidence." Install a Giselle Super Gas Block and feel that confidence for yourself.