You can find the Geissele Super Gas Block .750" Nitride here Fast $9.95 shipping! Orders over $200 ship for free!

The Geissele Super Gas Block is a low profile gas blockdesigned to fit under most free floating handguards. Precision investment cast from 17-4 precipitation hardening stainless steel and Nitride treated the gas block provides corrosion resistance and strength to withstand thousands of rounds. The included instructions cover the standard set screw installation method, as well as Geissele's own "Bombproof Installation". The bombproof installation uses an included coil pin to lock the gas block in place on the barrel so that it will never slide or twist under any operating conditions. Additionally the Super Gas Block comes with a SS dowel pin that can be used to effortlessly line up the SGB to Geissele CHF barrels to ensure a perfect alignment with the gas port. Includes set screws. Nitride coating finish.

Internal bore: .750"