Hi-Lux Optics Max Tac Dot 30mm Red Dot Sight is one of the toughest electronic red-dot sights built today, featuring ruggedly machined aluminum housing. The Max-Tac Dot sight features a solid picatinny mount machined right into the housing, and can be quickly and easily attached to any Weaver-style one pc. base or picatinny rail. Its two robust attachment nuts insure that this sight stays solidly mounted until the shooter is ready to remove it. This red-dot sight is a zero-magnification (1x) electronic reflex type sight that is parallax free - allowing the shooter to quickly get on target and quickly take the shot. The sight's 30mm lenses are fully multi-coated to insure the clearest and brightest sight picture possible with a sight of this design. Its covered windage and elevation turrets offer precise click adjustments.DiamondTuff Lifetime Guarantee