OEM fittings designed by Double Bell Compatible with Double Bell, WE and Marui M1911 pistols Precision made quality parts are designed to last Tough full metal built small parts endure heavy gameplay Great to have on hand as a replacement part Necessary components such as magazine valves and an inner barrel included In the Box 1X Inner Barrel 1X Magazine Fill Valve 1X Magazine Release Valve Specifications: Brand Double Bell Function Replacement Parts Build Full Metal Weight 1.45 oz Color GOLD California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov