The GAMO WildCat Whisper .177 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 technolgy, patented by Gamo. Features: Up to 1,300 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 4A-32 shockproof socope with mounts. 1 Year Waranty. Features: Caliber: 177 Velocity: 1,300 Feet Per Second (Fps) With Alloy Pellets Action: Single Cocking System. Noise Dampening: Whisper Powerplant: Igt Inert Gas Technology Gas Piston. Barrel: Fluted Polymer Jacketed Rifled Steel Barrel With Whisper Noise Dampening Technology. Trigger: Adjustable Trigger. Stock: Automotive Grade Glass Filled Nylon All-weather. Checkering: Non-slip Texture On Grip And Forearm. Recoil Pad: Ventilated Rubber. Safety: Manual Safety And Automatic Cocking Safety System Optics: Gamo 4A-32 Scope With Rings (Shockproof, Fogproof) Rail: 11 Mm, Grooved Cylinder. Warranty: 1 Year. Weight: 5.64 Lbs. Length: 44.5 In. Length Of Pull: 14.4 In. Ammunition: Any .177 Cal. Pellet. Trigger Pull: 3.53 Lbs. Barrel Length: 19.1 In. Cocking Effort: 30 Lbs.