The Spike’s Tactical SUGB120 Micro Gas Block is machined from solid billet steel with a black nitride coating, providing durability and corrosion resistance in a compact, low-profile form. Built for .750″ diameter barrels, its low-profile construction sits beneath most aftermarket rail systems, enabling you to extend your rail past the gas system for greater sight radius with iron sights and additional space for forward grips and tactical lights.
Mounting is accomplished with two included stainless steel set screws that lock the gas block securely to your rifle. The set-screw design resists the shifting and gas flow pinching that can occur with traditional clamp-style gas blocks, ensuring stable retention when properly installed. A closed front design prevents gas leakage that degrades rifle performance, and the entire unit is protected by Spike’s Tactical’s lifetime warranty.






