Product Description The Ergo Grip 4822 Low Profile Adjustable Gas Block is precision-engineered for AR-15 platforms, designed to fit under the Ergo Modular and SuperLite Rail System as well as most other manufacturers&'; free float handguards. CNC machined from 4140 chromoly steel and finished with a Melonite QPQ (Black Nitride) coating for outstanding corrosion and wear resistance, this gas block allows the user to variably fine-tune their rifle&';s gas system all the way down to a complete shutoff. Chamfered edges and a semi-press slip-on fit ensure effortless installation, while two included set screws lock everything securely in place. Maintaining the same low-profile height as Ergo&';s standard gas block, the 4822 is an ideal upgrade for suppressed and unsuppressed builds alike. Product Highlights CNC machined from 4140 chromoly steel for exceptional strength and long-term durability Melonite QPQ (Black Nitride) finish delivers superior corrosion and wear resistance Fully adjustable gas flow with complete full-shutoff capability and zero adjustment movement Low-profile design fits under most free float handguards without requiring modification Includes a 10-32 set screw and 4-40 retaining screw for a secure, Loctite-free installation Specs Brand: Ergo Grip MPN: 4822 UPC: 874748006422 Internal Diameter: 0.750" Material: CNC Machined 4140 Chromoly Steel Finish: Melonite QPQ / Black Nitride Color: Black Weight: 2 oz Compatibility: Fits under most free float handguards; same profile and height as standard low-profile gas block; accepts standard gas tube roll-pin (not included) Includes: 10-32 Set Screw and 4-40 Retaining Screw Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>