308 Bore sighter
The laser unit cartridge fits 243WIN,308WIN and 7MM-08REM caliber rifles.
It projects a straight laser beam allowing precise optical adjustments to sight in your scopes & sights without firing
Great for the range and ensuring your gun is still zeroed in after travel.
Easy to use .
Simply place batteries in end cap-twist and end cap to turn on-and place in chamber.
Laser output less than <5mw.
Wavelength 635-655NW
Precision made
Batteries:3 LR41 Button Batteries