Tactical Laser Bore Sight .177/22LR/9mm/.38spl Cal Red Laser Boresighter End Barrel for Revolvers Pistols Rifle Air Guns<br> <br> Features:<br> 1.ParametersClass IIIA laser, less than 5mW.<br> 2.Multiple Caliber ModelThis is a special laser boresighter for the .177/22LR/.223Rem/9mm/.38spl Cal pistol or rifle. It is directly into the barrel (without silencer), so it is easy to use and very accurately.That is a tool to help you adjust your range and set your firearms on the target quickly.<br> 3.MaterialSturdy brass construction.Using high quality laser module with qualified electronic components to support longer and consistent lifetime.<br> 4.High AccuracyThe fastest red dot laser zeroing and sighting system and save you time and cartridges.Save both time and money by avoiding prolonged live fire tests at the range.<br> 5.Spare Parts 2 sets (6 total) upgraded batteries and multiple spare O-rings(3 total). And come with the portable packing boxes that you can carry with you.<br> Specification:<br> Type: Red Laser Bore Sight<br> Power: Class IIIA laser, less than 5mW<br> Material: High quality machined brass<br> Laser Color: Red<br> Wavelength: 625-650nm<br> Sighting Range: 15 to 100 yards<br> Battery Type: AG3/LR41 Battery<br> Compatible Devices: Pistols, Rifle and Air Guns<br> Caliber:<br> 9mm/.38spl: Suitable for 9mm/Cal.38SPL /380ACP special laser training cartridge works with .357mag/9mm cal pistol or rifle.<br> .177 : Suitable for 17 HMR,0.17,Cal .177, caliber specific.<br> .223Rem: Suitable for 5.56mm .223 chamber and the 22-250Rem, caliber specific.<br> .22 LR: Suitable for .22 LR chamber<br> WARNING:<br> 1.Keep boresight laser beam away from eyes.<br> 2.Before boresighting your scope, make sure that the firearm is unloaded and the muzzle is pointed in a safe direction.<br> Package Included:<br> 1 x Boresighter<br> 9 x O-ring<br> 6 x AG3/LR41 Batteries