US Red Laser 223REM Bore Sighter Sight Cartridge 5.56 Dot Boresighter F Hunting 717029487698 | eBay
Amazon.com : Laser Boresight for .223 Rem 5.56 mm NATO | Combat Veteran Owned Company | Zeroing Sight in with Rifle | Zero Bore Sighter Lasers for Rifles | 556 223 Boresighter Lazer : Sports & Outdoors
Red Laser cartridge style bore sight for 223 Remington and 556 NATO caliber rifle carbine and pistols