0.22 to 0.50 Caliber Cartridge Red Laser Boresighter Accurate Bore Sighter Collimator
Red laser dot suit for darklight or indoor, visual range up to 300yardWavelength: 630-680mmMax Output: < 5mWColor: blackLength: 155mmHead Dia: 16mmTail Dia: 5mmWeight: 29gIf you find the bore sighter not straight in the barrel, please note :The caliber adapter can expands larger as your turn it into laser bore sighterPackage included:1 x Laser Bore1 x Screwdriver1 x Installation Stick4 x Adjustable Adapters2 x AG13 Batteries1 x User ManualTrademark OKEBA are marketed exclusively by USA OKEBA INC.