Green Laser Bore Sight Collimator With Button Switch, 7 Bore Adjustable Adapters Fit 0.177 To 0.780 Caliber

Specifications:
– Brand new item in box
-Power: <5mW Class II Laster -T6061 High class aluminum alloy in beautiful black matte -7 bore adjustable adapters to fit all .17-.78 caliber -Screws already are set in the factory when center aligning. -For any 0.17 to 0.78 handguns, rifles, sights and riflescopes - More convenient and accurate than scope and sight alignment. Easy to Use! - Battery: Rechargeable Battery 3.7V, 280mA - Length: 151mm, Head Dia: 19mm, Tail Dia: 4mm