Spike Red Dot Laser Boresighter Brass Bore sighter for 30-06 Springfield .25-06 / 270 Airsoft Hunting Fits 30-06 Springfield, .25-06 Rem, and 270 Winchester ,Class 3R lasers Durable all brass construction Works with any sights (iron, optical, laser, holographic, etc) Long sighting range.Durable all metal construction Note:without Battery