Features: Aluminum slide. Patterned after the Gen 5 pistol. Improved quality polymer frame. Includes 2 extra back straps. Comes with a 24 round gas magazine. Specifications: Length - 210mm Weight - 740g Magazine Capacity - 24+1 Rounds Power Source - Green gas/Top gas Blowback - Yes Shooting Modes - Semi Auto Hop-up - Adjustable. Magazine Compatibility - WE G series magazines. FPS - 300 The Gen 5 style pistol from WE is the first of its kind on the market patterned after that particular generation. The pistol features several improvements over previous WE G series pistols. Improvements such as higher quality aluminum slide and better quality polymer frame. The rest of the gun preforms much like previous WE G series pistols with satisfying recoil and a fair trigger pull and break. Like all GBB pistols, this one needs the same amount of attention and care after use such as lubrication and cleaning. As an extra bonus, the pistol comes with 2 extra back straps for a more custom fit. Includes: x1 WE Model 17 GEN 5 Black. x1 24 Rnd Magazine. x2 back straps x2 Manual. This product is only compatible with gas designed specifically for Airsoft guns. Do not use lighter fluid or butane gas, as that will cause permanent damage.