100% Original Tactical Red Dot Bore Sighter Collimator Kit Adjustable Adapters Red Laser Bore Sighter with Box with Free Battery for .22 to .50 Caliber

Features:1. Precise laser holes, 0.22 to 0.50 of any line of sight collimatorsuitable (5.59-12.7mm diameter)2. It is more convenient and accurate than the sight and sight line.3. Allows you to set your vision or range immediately and accurately.4. It has 5 adjustable adapters, a screwdriver, a hex key and three batteries.5. Avoid direct eye contact