This is the TTI JW4 Pit Viper by JAG Arms with 3x standard mags, licensed by TTI, and 1x extended mag. The Pit Viper itself also has extensive internal upgrades in order to lighten the slide to lessen recoil and make follow up shots a lot snappier and quicker. Also upgraded is the inner barrel and hop up chamber. Original parts will be included as well (see picture). The gun has never been fielded and has been shot only for testin and upgrading. Magazines have no noticeable leaks and they and the gun function perfectly! Please NO TRADES (trade requests will be ignored). I accept PayPal only.