ELENKER CAL 223 5.56mm Rem Gauge Laser Bore Sighter Boresight Red Dot
The laser unit cartridge fits 223REM caliber rifles
Simply place batteries in end cap-twist and end cap to turn on-and place in chamber
Class 3A laser and laser output less than <5mw
Great for the range and ensuring your gun is still zeroed in after travel
It projects a straight laser beam allowing precise optical adjustments to sight in your scopes & sights without firing and ammo