Product Description The Aero Precision Low-Profile Adjustable Gas Block gives shooters precise control over their AR-15 or AR-10/LR-308 gas system, making it an ideal upgrade for suppressed builds, competition rifles, and any application where fine-tuning gas flow is critical. Machined from durable 4140 steel and finished in a tough Black Nitride coating, this gas block is compatible with barrels featuring a .750 gas block journal. Its low-profile design slips seamlessly under slim free-float handguards, including the Aero Precision ATLAS series, while the stainless-steel adjustment screw delivers 15 repeatable gas settings through audible, detent-indexed clicks. A built-in sacrificial chamber channels carbon fouling away from the adjustment mechanism, helping prevent carbon locking and providing an access point for solvent if service is ever needed. The user-serviceable design ensures long-term reliability and easy maintenance. Each unit ships with the assembled gas block, a 6" 3/32 hex adjustment wrench, and a replacement spring and detent. Product Highlights Precise 15-Position Gas Adjustment: Custom machined stainless-steel screw with spring-and-detent indexing delivers audible, repeatable clicks for reliable gas tuning without secondary set screws that can loosen under recoil. Low-Profile Design: Fits under slim free-float handguards including the Aero Precision ATLAS series, keeping your build sleek and snag-free. Carbon-Lock Prevention: Integrated sacrificial chamber channels carbon fouling away from the adjustment mechanism, extending service life and simplifying cleaning. Premium Construction: Machined from 4140 steel with a Black Nitride finish for exceptional hardness, corrosion resistance, and long-term durability. Versatile Compatibility: Designed for barrels with a .750 gas block journal, compatible with AR-15, AR-10, and LR-308 platforms. Attaches via 10-32 x 3/16 knurled set screws. Specs Brand: Aero Precision MPN: APRH101614C UPC: 815421028218 Material: 4140 Steel Finish: Black Nitride Gas Block Diameter: 0.750 Inches Gas Adjustment Settings: 15 Attachment Method: 10-32 x 3/16 Knurled Set Screws Adjustable: Yes Weight: 1.4 oz Compatible Platforms: AR-15, AR-10, LR-308 Country of Origin: United States of America Includes: Assembled Adjustable Gas Block, 6" 3/32 Hex Adjustment Wrench, Replacement Spring and Detent 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. ]]>