Vortex Micro3X Magnifier 3X Magnification Quick release picatinny mount Aircraft grade aluminum Nitrogen purged Fully multi-coated Objective lens: 22mm Eye relief: 2.64" FOV: 38.2' at 100 yards Length: 2.9" Weight: 9.6 ounces Recessed turrets Includes: Quick release flip mount, lower 1/3 co-witness shim, rubber lens cover, lens cloth, 3mm hex tool Compatible with any Vortex red dot sights. Not compatible with prism scopes