Manufacturer: Umarex FPS Range: 315-345 Specifications: Length: 510mm / 695mm (Folded / Total) Inner Barrel: 247mm Magazine Capacity: 400rd Hi-Capacity. Compatible with Matrix, Tokyo Marui, G&G and other similar G36 Series Airsoft AEG Magazines Muzzle Velocity: 315~345 FPS (Measured with 0.20g BBs) Gearbox: Ver 3 Full Metal Reinforced Gearbox. Fully Upgradeable. Motor: Short Type Fire Modes: Semi/Full-Auto, Safety Battery: 8.4v Small Type / 7.4v LiPo recommended Hopup: Yes, Adjustable Package Includes: Gun, Magazine