LIGHTWIN Bore Sight Cal .223 5.56mm Rem Gauge Laser Bore Sight Bullet Green Dot Boresighter with 18 Batteries
Category: Sports & Outdoors
Categories: Sports & Outdoors > Hunting & Fishing > Shooting > Optics > Boresighters
Store: LIGHTWIN
Average rating: 3.8 (112 ratings)
Features:
Made to fit the .223 REM 5.56mm chamber, caliber specific. Class IIIA laser, less than 5mW, 520-532nm green dot laser.
High accuracy to reduce cartridges and shells wasted, sighting range of the bore sight is 15 to 100 yards.
Comes with 3 sets UPDATED batteries (18 LR41 batteries) which can last one hour, each set of battery can last 20 minutes, one set contains 6 batteries.
Easy to sit perfectly in the bore. Sturdy brass construction. Fast gun zeroing and sighting.

Specification:
-- Length: 44.5mm; Tail width: 9.5mm; Head width: 6.3mm -- Laser Wave Length (nm:) 520 to 532 -- LED Type: Visible Green Laser -- Power: <5 mW -- Construction: Brass -- Sighting Range: 15 to 100 yards -- Dot Size: 2 inches at 100 yards -- Operation: On/Off End Cap -- Temperature: -10℃ to 40℃ -- Battery Type: 18 X LR41 Batteries (Included)
How to use the bore sight?
1. Unscrew the back cap from the bore sight by turning counter clockwise. 2. Stand the bore sight on a flat surface with the laser side pointing down. 3. Insert batteries (+ side up) inside the rear opening. 4. Carefully push down and turn the screw cap clockwise to tighten the cap (the laser is now on). 5. Place in your rifle’s chamber and close the bolt. 6. To remove - Open the bolt if it does not automatically extract, manually remove the unit by tilting the rifle’s barrel upward (always practicing safe firearm practices). 7.Unscrew the back and remove the batteries to turn the unit off.
Package included:
-- 1 X Bore Sight -- 18 X LR41 Batteries -- 1 X Plastic Storage Box -- 1 X User Manual