STONESKY .223REM 5.56mm Rem Red Dot Boresighter End Barrel Laser Bore Sighter w/Batteries spotting scope for rifle hunting

.223REM 5.56mm Rem Red Dot Boresighter End Barrel Laser Bore Sighter w/Batteries spotting scope for rifle hunting 

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 5.56mm .223 chamber and the 22-250Rem, caliber specific.It is directly into the barrel (without silencer), so it is easy to use 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.
【Spare 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 special laser boresighter for the  .223  chamber. laser boresighter is installed from muzzle end(without silencer), projects a laser beam from the center of the bore axis, and provides a precise reference to zero-in your optic or iron sights, saving your time and money.

Specification:
Length: 80mm
Max. Output Power: ＜5mW Wavelength:(Red) 625-650nm
Power: Class IIIA laser, less than 5mW
Material: High quality machined brass
Sighting Range: 15 to 100 yards
Temperature: -10℃ to 40℃
Battery Type: L736F (Included) (EXTRA SET INCLUDED! - total 6 batteries!)
O-rings:multiple spare O-rings(12 total)

Packing:
1 x Boresighter
12 x  O-ring(3 Spare)
3 x L736F Batteries(3 Spare)