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