STONESKY Tactical Hunting Riflescopes 223REM with Red Bore Sight and Dry Firing Snap Caps for Shooting Practice and Firearm Training

Tactical Hunting Riflescopes 223REM with Red Bore Sight and Dry Firing Snap Caps for Shooting Practice and Firearm Training Features:  Size, Configuration: height 1.74inches, diameter 0.38inches weight 0.04pounds. The wavelength is 650nm. The calibration range is 0 to 100 m 【Performance】Our Tactical Training Laser Cartridge doesn't like the bore sight keeps lighting up, Bright red Class 3A (<5mW Operates at 650nm) laser flashes when Activates on fall of hammer or striker.Rubber snap cap at the rear of the cartridge protects the firearm under "Dry Fire" 【Use tips】Taking into account the usage habits of different customers,we suggest that 5 yards to 10 yards is the optimum use distance.When the trainer cartridge does not work during use, please check whether the battery installation and the model of the gun are correct. If it is because the switch is not hit well, you can use tape to fix and thicken it. 【1 more switch as replacement】The switch can be reused more than 300-500 tim