Boresight kit with green laser for initial adjustment of hunting carbine will save your time and ammo.
Laser inserts directly in carbine barrel than on the back screwed rubber cylinder of appropriate diameter. For the tight fit, it advised using washer with the bolt.
Before insertion is better to apply oil on the cylinder for smooth travel along the barrel.
Before installation muzzle brake must be removed then you need to put conical part of sight on the muzzle.
Laser boresight should be inserted and removed smoothly. With this kit, you can adjust aiming of 7.62*39, 410, 4.5 mm, 5.5 mm (air rifles). The procedure will require windage/elevation tool for front-sight bead and post position adjustment.