The WLA AR10/15 Gas Key features a durable nitride finish and is proudly made in the USA for reliable performance in AR-platform rifles.WLA AR10/15 Gas Key (SKU: WLA-BCG-3019)Nitride finish for enhanced durability and corrosion resistanceCompatible with AR10 and AR15 bolt carrier groupsMade in the USA for quality assuranceEssential bolt carrier group componentThis precision-manufactured gas key ensures proper gas system function and reliable cycling in AR-platform firearms. Note: Cannot be shipped directly to California due to state regulations.