FPS Range: 260-275 Features: Fully Licensed Smith & Wesson Trademarks High Strength Polymer Frame and Full Metal Slide High Power Blowback Assembly Ergonomic Pistol Grip Split-trigger Safety Integrated 20mm Lower Accessory Rail Rear Slide Serrations Realisitic Round Indicator Realistic Blowback Action Dimensions: 165mm x 120mm Muzzle Velocity: 260~275 FPS (Measured w/ 0.20g BBs and Green Gas) Magazine: 14rds Gas Type: Green Gas, Red Gas, Propane Firing Mode: Semi Automatic, Safety System: Gas Blowback Hopup: Yes, Adjustable Package Includes: Gun, Magazine Manufacturer: VFC (Licensed by Smith & Wesson) *GBB 101: It is a good idea to let your magazine return to regular temperature before using it again for optimized performance. We recommend spare magazines for best performance on all GBB's. About Cybergun / Spartan Mil/LE Cybergun is the world leader in designing and distributing replica dummy weapons for video game aficionados, sport or outdoor shooting, and collectors.