This is one of the few gas powered airsoft guns that uses CO2 cartridges instead of green gas. This makes it easy and convenient to refill your gun. This is a 1:1 scale registered copy of the Smith and Wesson 1911 Sigma 40F. It has the same great look and feel and is a realistic weight. Smith & Wesson is one of the world's most recognizable brands, and for good reason. Almost every major law enforcement and military agency in the world has used Smith & Wesson products, and to this day, most police departments in the United States depend on their firearms and accessories. Features: 1:1 Scale Model of S&W 1911 Sigma 40F Dual Tone CO2 Powered Blow-back Adjustable Spin Up System  Weight: 2.17 lbs Magazine Capacity: 39 rds  Velocity: 360 fps Availability: Usually ships the same business day. Smith & Wesson Sigma 40F CO2 Powered SOFT32526Regular price: $109.99Sale price: $99.99 Copyright 2001-2011 Police Equipment Fire Rescue Supply at wholesale price.