The BSA Optics LS532 Index-Guided Laser Target Designator (532 nm) is a high-quality device incorporating advanced laser optics and microelectronics. The laser attaches to either a 3/8" grooved receiver found on most .22 rifles and air guns, or to a 5/8" weaver style base as installed on most centerfire pistols and rifles. The laser comes with the mounting rails for a weaver-style mount already installed.
Can be attached to a 3/8" grooved receiver (air guns and .22 rifles)
Mounting rail for 5/8" weaver-style bases included (for centerfire pistols and rifles)
Weaver-style rail utilizes a lock screw to prevent its slippage under recoil