Backsit simulator for firearm shooting training

The utility model discloses a recoil simulator for firearm shooting training. The recoil simulator is used for carrying out nearly real shooting training on a shooter. Comprising a rear end cover, a piston cylinder and a front end cover, the rear end cover is provided with a gas storage cavity, a gas inlet connector is arranged on one side of the gas storage cavity, the gas inlet connector is communicated with an inner cavity of the piston cylinder through the gas storage cavity, the gas inlet connector is used for being connected with a high-pressure gas tank, and a lead core piston is arranged in the piston cylinder in a sliding fit mode. The lead core piston comprises a piston part and a piston rod, the front end cover and the front end cover limit the front limit position and the rear limit position of the piston part, the piston rod is sleeved with a piston reset spring, an annular boss is arranged in the front end cover, the piston reset spring is positioned at the piston part, and exhaust holes are for