fireclub tactical cnc picatinny cnc side scope mount 20mm weaver black quick detachable fireclub weight: 7.3 oz./lenght: 6.75" material: hard coat anodized 6061 aluminum melonite coated steel easy to install; simple and quick to remove or install. picatinny weaver t-marked for location attaches to with built-in receiver mount interface hard coat anodized 6061 aluminum construction features an auto lock system for no tool adjustment and repeat zero locking. premium, solid, durable aluminium and high pressure steel; black matte anodizing finish, sturdy, lightweight construction, high quality, sturdy construction, build no wobble, offer durable safe, mainly designed for airsoft