This is the next generation Swarm Magnum pellet rifle in .25 caliber. Unprecedented knockdown power. Unparalleled performance. Offering smoother operation and improved accuracy for an outstanding shooting experience, the Swarm Magnum Pro 8X GEN3i includes the patent-pending 8X GEN3i Technology with Gamo's revolutionary horizontal inertia-fed magazine integration- making it lighter, more compact, and low profile. The magazine indexes using the inertia force from the recoil of the air rifle, creating a smoother and more precise breech-loading process.This air rifle also features a redesigned stock that blends a classic hunting profile with automotive-grade glass-filled nylon for strength and durability. The forearm, grip, and cheekpiece are non-slip texturized for confident handling in any conditions.