12g Co2 to 88g "AirSource" Type Disposable Co2 Capsule for your SIG SAUER MPX / MCX We went back to the drawing board on this new unit, and improved all of the features that were "lacking" in the previous design. 1. Extended reach nose to get down in there! 2. Stainless steel piercing tip, offers a more durable piercing solution. 3. Better 'O' ring seal for increased resistance to leaks. Dimensions: 130mm Long including thread. 25mm Diameter at widest point. Allows the use of a 12g Disposable Cartridge in your SIG SAUER MPX that uses 88g AirSource, Umarex, Liss etc Disposable Co2 Cartridges. Great if you want to check for leaks after a seal service, a short plinking session, or if you don't want to leave an expensive AirSource bottle on the gun when in storage. 35 + Shots. Co2 Capsule shown for size reference only, and is not included in the sale.