The HK3 3-PX4 airsoft pistol will stun battlefield competitors with its realistic look & responsive gas blowback recoil. This pistol has a full metal slide that lends tremendous feel to the shooting experience. The pistol features a functional thumb safety, a 24 rd magazine, and a shot velocity of 285-300 fps (using .20g BBs). An adjustable hop-up unit lets you control the long distance accuracy of the gun. Mount your favorite flashlight or laser sight on the Weaver/Picatinny rail under the barrel!! Features: Semiautomatic Full metal slide Functional thumb safety Adjustable hop-up Weaver/Picatinny rail