Swarm Magnum 10X GEN3i INERTIA FED .22 Caliber 10-Shot Air RifleSwarm Magnum 10X GEN3i INERTIA FED . 22 calibre 10 shot air rifle Inertia fed. Market leading design. Introducing the third generation of Gamos exclusive rapid reload technology. This patent pending 10X GEN3i technology features a sleek and stylish design combined with our horizontal inertia fed magazine integration. The magazine indexes using the inertia force from the recoil of the air riflecreating a smoother and more precise breech loading