STONESKY .17 Red Laser Bore Sight End Barrel Laser Boresighter For .17 Chamber w/ Battery

.17 Red Laser Bore Sight End Barrel Laser Boresighter For .17 Chamber w/ Battery About this item 【Laser standard】 Class IIIA red laser, less than 4.9mW and wavelength is 650nm. Its basic parameter conformed to the correlation application standard. 【Model】 This laser boresighter more suitable for the Cal .17 special caliber. It is directly into the barrel (without silencer), so easy and very accurately. 【Advantage】 All made of brass, so it is sturdy and durable. Also it is beautiful and it won't damage the barrel. The portable packing boxes that you can carry with you. 【As a gift】Real brass material after CNC precision machining and gilded treatment. Perfect for the gold cartridge and exquisite packaging. It is perfect as a gift for a friend or elder. 【 Parts】 Equipped with 2 set of batteries and multiple spare O-rings. You don't worry about the working time not enough. This is a customized laser bore sighter for the .17 special caliber. It is inserted into the barrel (without si