This is a Gamo known as the Swarm Maxxim chambered in 22PEL, model 611003855554.
The Swarm Maxxim .22 caliber provides the perfect shooting platform for small game hunting and recreational shooting. The Swarm Maxxim features 10X Quick-Shot patent pending technology that utilizes a 10-round rotary-style magazine" providing faster loading for repetitive shooting. Simply break open the fluted polymer jacketed rifled steel barrel and fire for lightning-quick follow-up shots. The Swarm Maxxim barrel has integrated Whisper Maxxim sound suppression technology" keeping shooting noise to the minimum. The Inert Gas Technology delivers steady and consistent power" increasing accuracy and durability with less vibration. The Swarm Maxxim incorporates GAMO's patent pending CAT (Custom Action Trigger)" a two-stage adjustable trigger that provides a crisp" clean and smooth trigger pull for improved accuracy. GAMO designed the Swarm Maxxim with their Recoil Reducing Rail that maximizes the scope lifespan because of its 99.9% recoil compensation designed for high-power air rifles.
Features:
Caliber: 0.22
Action: 10X Quick- Shot technology enables you to shoot up to ten pellets without reloading. Single cocking system.
Powerplant: IGT Inert Gas Technology gas piston.
Trigger: Two stage independently adjustable CAT (Custom Action Trigger).
Safety: Manual safety and automatic cocking safety system.
Ammunition: Any .22 Cal. Pellet.
Barrel Length: 19.9 in.
Velocity: 975 feet per second (fps) with PBA Platinum.
Noise Dampening: MAXXIM
Rail: RRR (Recoil Reducing Rail).