Features: Zooms with 3x of power magnification. Capable to mount onto 20mm weaver standard rails. Detaches and installs easily with a quick release lever. ET Style mount for the G43 airsoft. Rotational knob is fully adjustable. Package Includes: 1X Magnifier, 2X Bolts Shockproof and weatherproof, easy to setup, fits any 20mm Rail. Easy to install with built-in quick detachable . Elevation adjustment and view of the side of Leverage. Made from premium material, it is durable for long time. Package Includes: 1X Magnifier, 2X Bolts G43 magnifier: Fixed Magnification 3X Water Resistance:33 ft. (10 m) Mount:1″ Weaver or MIL-STD-1913 rail Eye Relief:2.6″ Field of View: 7.5Degree Overall Length:2.9″ Material: Aluminum alloy Sealing Fog resistant internal optics color : black