The KWA 2016 model ATP-SE, was designed with specifically for the airsoft player with an edge. The redesigned ATP-SE provides players with a semi and full auto selector, a ported outer barrel for an aggressive look and a new threaded barrel feature for players looking to complete their load out with a mock suppressor. The lower polymer frame and aluminum alloy slide makes the pistol light and cost effective. The accessory rail provides the operator with a tactical advantage and three dot sights allow for a rapid target acquisition. The ATP-SE also features an interchangeable back strap that allows the shooter to customize the fit and feel to their personal needs. The Adaptive Training Pistol, or ATP, was KWA's first originally designed training pistol unique to the airsoft market. It was designed to resemble the fit and feel of familiar duty weapons currently used by law enforcement and military groups. With the increasing cost of ammunition and the risks of live fire training, the KWA ATP Series is one of the most cost effective and valuable training tools available. Weight 2.0 lbs Dimensions 11.5 × 7.5 × 2.5 in Collection Professional Training Firing Modes Full Auto, Semi Color Black Mag Type Gas, Pistol Power System Gas Blow Back Platform Pistol Length (Retracted): NA Length (Extended): 8.25 Height: 5.71 Outer Barrel Length: 4.84 Inner Barrel Length: 4.09 Magazine Capacity: 23 Weight: 1.61 Gearbox: NA Electronic Trigger Ready: NA Rate of Fire: 15+ Velocity: 320-3330FPS Power Source: Green Gas Operation: NA Adjustable Hop Up: Yes FPS Range: 320-330FPS Firing Modes: Semi Auto, Full Auto Motor Type: NA Stock: NA Rail Type: Picatinny Rail Muzzle Device: NA Compatible Magazines & Additional Features: 1. Interchangeable back straps 2.Compatible with most glock 17 holsters