The laser unit cartridge fits 8mm caliber rifles.
It projects a straight laser beam allowing precise optical adjustments to sight in your scope and sights without firing any ammo.
Great for the range and ensuring your gun is still zeroed in after travel.
Easy to use, simple place batteries in end cap - twist end cap to turn on and place in chamber laser output less than 5mw wavelength 635-655NW.
Precision made, battery included.