Laser switch does control the laser light ON/OFF through sliding the battery holder.
Screws already are set in the factory when center aligning. More convenient and accurate than scope and sight alignment. It can perfectly match the gun tube to ensure the accurate calibration.
Power: <5mW Class II Laster .
T6061 High class aluminum alloy in beautiful black matte. Packed with new fashionable plastic box and gift box. Batteries not included for it's easy to be found in store.