The GAMO Swarm Whisper pellet rifle features the 10X Quick-Shot patent pending technology that utilizes a 10-round rotary-style magazine, providing faster loading for repetitive shooting. This air rifle also features the IGT (Intert Gas Technology) piston that allows higher velocity, less vibration and a longer lifespan than the traditional spring-powered airguns. The GAMO Swarm Whisper also features the well-known patented Whisper noise dampening technology. Features: Up to 1,300 fps (.177 Cal.) using Gamo PBA Platinum pellets, IGT (Inert Gas Technology) piston, Whisper noise dampening technology, two-stage trigger, single cocking break barrel, automatic cocking safety system, manual trigger safety, fluted polymer jacketed steel barrel, and a 4A-32 shockproof scope with rings.