KWA ATP Adaptive Training Gas Blowback Airsoft Pistol, NS2 Gas Delivery System The KWA ATP (Adaptive Training Pistol) is a semiautomatic gas blowback airsoft gun that was developed in collaboration with law enforcement and military agencies. The ATP features KWA's NS2 gas system for enhanced functionality & crisp blowback recoil. This gun shares many similar characteristics of the M17 airsoft pistol. The grip angle & takedown are nearly identical, however the ATP has an extended slide release & interchangeable back straps for a unique and comfortable shooting experience. The ATP features a full metal slide & durable polymer lower receiver, a 23 rd magazine, and a shot velocity of 320-350 fps (using .20g BBs). An adjustable hop-up unit lets you dial in the accuracy on your long distance shots. Mount optional accessories on the rail underneath the barrel for added effectiveness in the battlefield! Features: