The Ergo Adjustable .750 Gas Block with Nitride Finish (4822) is designed to fit under the Ergo Modular and SuperLite™ Rail System, as well as most other manufacturer’s free float handguards. Adjustments are made via a 5/64″ set-screw and a 5/64″ retaining screw ensures the system remains locked, no need for Locktite.

Features:

• CNC machined 4140 Chromoly steel
• Full shutoff with zero adjustment movement
• Nitride/Melonite QPQ finish
• Chamfered edge, semi-press fit
• USA made steel & Machined in the USA
• Weighs 2oz
• Fits under most free float handguards
• Internal Diameter 0.750
• Same profile/height as the standard low-profile gas block
• Includes (2) set screws for a secure attachment
• Includes a 5/64″ Set-Screw and a 5/64″ Retaining Screw (Rearward facing)
• Accepts standard gas tube roll-pins but, a roll-pin is NOT included
• Clamp set screws are 3/32″