Sightmark Laser Bore Sight 20 Gauge SM39008. You can use them on shotguns handguns rifle scopes and adjustable iron sights The caliber-specific laser boresight fits into your firearm s chamber and emits either a red laser or green laser (depending...
Sightmark Laser Bore Sight 20 Gauge SM39008. You can use them on shotguns handguns rifle scopes and adjustable iron sights The caliber-specific laser boresight fits into your firearm s chamber and emits either a red laser or green laser (depending...