Price history on Walmart.com for
LaserMax Uni Rail Mounted Green Laser, requires at least 1 3/4" of rail space w/momentary activation switchSee on Walmart
LaserMax UNI Rail Mounted Laser (Green) Requires at least 1 3/4" of rail space w/momentary activation switch. As small as a matchbox and no heavier than a single .45 ACP round, the UNI series adds error-free precision without weighing you down. Featured advanced programming and an integral rail for the attachment of additional accessories, a UNI fits virtually anything with a Picatinny or Weaver rail. Attach one to your pistol, carbine, shotgun, gun, or find an entirely new use for this revolutionary stackable rail interface! Windage and elevation settings are easily adjusted to accommodate any platform at any distance. The world's only stackable laser sighting system. The LaserMax UNI is water resistant and fully adjustable for windage/elevation.... read more.