Crosman 1911BB Tactical .177 Semi-Auto CO2 Pistol: * Under the barrel rail system * Stock material: synthetic * Barrel: smooth steel * Power source: CO2 * Mechanism: semi-auto repeater * BB clip capacity: 20 * BB velocity: 550fps * .177 caliber * Ammo type: .177cal BB only * Safety: bolt * Weight: 1.1lbs * Length: 7.06" * Model# 40005