Features Folding Stock MIL-SPEC-1913 Picatinny side and top rails Active Trigger Safety Integrated vertical fore-grip Realistic construction and field stripping Functional cocking handle with realistic bolt action Semi and Full Auto Adjustable Hop-Up FPS Range: 350-400 Outer Barrel: SteelCaliber: 6 mm Airsoft BBsMagazine Capacity: 48 roundsFrame Material: Fiber Reinforced PolymerGas System: New Structure [NS2]Velocity: 350~400 fps with 0.20 gram 6mm Airsoft BB'sPropellant: Green GasDimensions [Un-Folded]: 52.70 cm X 24.13 cmDimensions [Folded]: 30.48 cmInner Barrel Length: 140 mmWeight: 1.81 kgBB:6mm. (The KWA MP9, UMG and USP series uses regular 6mm Airsoft inner barrel that works great with all high grade bbs. However, their magazine chambers are designed to feed best with 5.88mm KSC bbs that are smaller in size. Most high grade 6mm Airsoft bb may still work but lubrication and perfect stacking may be required for optimized smooth feeding.)Package Includes: Gun, Magazine, Manual
