Odin Works Gas Block Adjustable .875'' Low Profile Ar-15. Machined from steel and black nitrided for durability. Front facing Inconel adjustment screw and spring to handle high temperatures. 20 clicks of ball detent adjustment no set screws needed simply adjust the Inconel screw where you want it and youre done. Will fit any barrel with .875 diameter and works with any caliber. Features/Specifications: Technical Specs Not for use with pistol length gas systems and high pressure rounds. Fits inside all ODIN Works Forends. Fits .875" diameter barrels. Weight: 2.45 oz (includes detent ball screws and pin). Made from Carbon Steel. Nitride finish. Inconel adjustment screw and spring. 20 adjustments. Includes detent ball cross pin set screws and hex wrenches. Included Accessories: Wrench Specifications for Odin Works Gas Block Adjustable .875" Low Profile Ar-15: Manufacturer: ODIN Works Color: Black Fabric/Material: Carbon Steel Gun Model: AR-15 Additional Features: Low Profile Condition: New Diameter: 0.875 in Package Contents: Odin Works Odin Gas Block Adjustable .875" Low Profile AR15 The Odin Works Odin Gas Block Adjustable .875" Low Profile Ar-15 is a quality addition to the ODIN Works lineup. For more great deals on AR Gas Blocks by ODIN Works please browse our ODIN Works Gun Parts page. What firearm models does the manufacturer say Odin Works Gas Block Adjustable .875" Low Profile Ar-15 is compatible with? The manufacturer says that Odin Works Gas Block Adjustable .875" Low Profile Ar-15 is compatible with AR-15Odin Works Odin Gas Block Adjustable .875'' Low Profile Ar-15