This is an Air Venturi Avenger PCP air rifle in .177. If you're unfamiliar with PCP guns, they use a VERY high pressure air cylinder and this once can usually fire about 50 rounds on ome charge. I get decent accuracy using only the dirt cheapest ammo, and with the included tub of pellets it's basically free to shoot. Comes with a manual pump, though electric compressors for these things do exist if thats not your thing, manuals for the gun and the pump, and a Vortex Crossfire II (I believe?) scope. Also has 1 10-round rotary magazine and a single-shot feed tray.