Geissele: Super Compact Gas Block - Black

The Geissele Super Gas Block is a low-profile gas block, designed to fit under most free-float handguards. Precision investment-cast from 17-4 precipitation-hardening stainless steel, the gas block provides corrosion resistance and strength to withstand thousands of rounds and never let you down. 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, preventing it from sliding or twisting under any operating conditions.  Additionally, the Super Gas Block comes with an SS dowel pin that can be used to effortlessly align the SGB with Geissele CHF barrels, ensuring a perfect alignment with the gas port.

Specifications:

• COLOR: Black
  
• MATERIAL: Precipitation Hardness Stainless Steel
  
• COMPATIBILITY: AR Platform
  
• GAS BLOCK JOURNAL SIZE-DIAMETER: .750 in

The bore of the SGB is machined to closely fit around .750” diameter mounting bosses found on most M4 Carbines and AR-15 rifles.

Included:

• Bombproof Coil Pin
• 2 set screws
• Gas tube coil pin
• Stainless steel barrel alignment pin

Installing your SGB on a Geissele CHF barrel using the included Alignment Pin

• The purpose of this alignment pin is to easily index the SGB gas port with your barrel's gas port by simply mating the pin to the corresponding machined groove in the gas block shoulder of your Geissele Barrel.  The alignment pin is installed into the hole located at the top rear of the SGB, facing the gas journal shoulder. The pin can simply be installed in the gas block by being tapped with a mallet or pressed in until it stops.