Easily attach to most Weaver, Picatinny, ot MIL-STD 1913 type rails the Vism ECO Rifle Scope with Green Laser makes a great addition to your firearm. These Prismatic Red Dot Sights from the forerunners at VISM feature a top mounted backup iron rear peep sight that can be positioned on the left, right, or 12 o'clock position. With an electronic control panel effortlessly navigate on and off as well as cycling through light modes. Seeing in the dark has never been easier than with a Vism ECO 4X34 Prismatic Rifle Scope.