Features Durable polymer 9mm style carbine receiver with matte anodized finish and stamped G&G rollmarks, mimics the popular billet style of receiver Adjustable PDW style collapsible stock with stock tube 5" M-LOK handguard is compatible with all M-LOK accessories Ergonomic motor grip with enhanced trigger guard allows for easier use of the carbine with gloves Flat faced competition style trigger, textured selector switch and mock bolt catch provide the ARP9 with aggressive details Integrated MOSFET protects wiring and is programable to fire either 3-round burst or fully automatic ETU (enhanced trigger unit) improves trigger response and cyclic rate Length: 500mm - 590mm (adjustable)Weight: 2350gInner Barrel: ~150mmMagazine Capacity: G&G 9mm style carbine magazine / TBAThread Direction: 14mm NegativeGearbox: Ver 2 Full Metal, Fully UpgradeableMotor: Long TypeFire Modes: Semi/Full-Auto, SafetyBattery: 7.4V Small Butterfly Type recommended (Battery not included. Wired to buffer tube with small Tamiya connector)Hopup: Yes, AdjustablePackage Includes: Gun, Magazine, Manual INCLUDED: - TRACER (MOCK SILENCER)- 1 MAG- BATTERIE EXTENSION