Our take: This NcStar Pistol Laser Sight is visible up to 500 yards. The Sturdy Aluminum body features an on/off switch and it mounts simply and easily with the universal pistol mount which is included along with the tools need. It includes the laser sight, Allen wrenches and 3 lithium batteries. Adjustable trigger mount with shims so you can custom fit it to just about any gun. It Measures: 2 1/4' long and weighs only 4 ounces.An extremely effective target acquisition tool that is quality manufactured by NcStar.NcStar x Airsoft MegastoreAs a premier authorized NcStar distributor, Airsoft Megastore offers the LOWEST PRICES you will ever find on the market on ALL high-quality NcStar products, backed of course by our 125% lowest price guarantee. And because we ALSO service and honor NcStar's lifetime warranty, there's no better place to buy all your NcStar gear and optics than Airsoft Megastore!