The GAMO WildCat Whisper pellet rifle features the IGT (Inert Gas Technology) piston that allows higher velocity, less vibration and a longer lifespan than traditional spring powered airguns. It also features the Whisper noise dampening technology, patented by GAMO. The GAMO WildCat Whisper pellet rifle features the IGT (Intert Gas Technology) piston that allows higher velocity, less vibration and a longer lifespan than traditional spring powered airguns. The Gamo WildCat Whisper also features noise-dampening technology patented by Gamo. Features up to 975 fps using Gamo PBA Platinum pellets, IGT (Inert Gas Technology) piston, Whisper noise dampening technology, single cocking break barrel, automatic cocking safety system, manual trigger safety, fluted polymer jacketed steel barrel, standard trigger with adjustable second stage, and a 4x32 shockproof scope with mounts. 1 year warranty. Features: IGT inert gas technology gas piston powerplant WHISPER noise dampering Grooved cylinder rail Ventilated rubber recoil pad Automotive grade glass filled nylon all-weather stock Fluted polymer jacketed rifled steel barrel with WHISPER noise dampening technology GAMO 4x32 scope with rings (shockproof, fogproof)