Silverback TAC-41 Length: 1100mmInner Barrel Length: 510mm, 6.05mm AEG cut brass barrelWeight: 2650gUsable Cylinder Volume: 41000 cubic millimetersThread Pitch: M24 x 1 Positive Threaded muzzle, compatible with most 24mm Airsoft muzzlesMagazine Capacity: 48 rounds per magazine, internal magazine ramp holds 20 BBsFire Modes: Single shot, SafetySystem: High Power SpringHopup: Yes, AdjustablePackage Includes: Gun, 2x Magazines, PVC Patch, Manual