E&C SII 8.5 Inch AEG Airsoft Rifle EC-337

QD-System: With Quick Disassemble System, even beginners can replace the spring in a minimum of 60 seconds. Solid Construction: Built with a full metal upper and lower receiver for enhanced durability and authenticity. Easy Adjustment: Features a mock bolt that locks open, providing easy access for hop-up adjustments. Upgradeable Design: Equipped with a metal Version 2.0 gearbox, our airsoft gun offers easy upgradeability to enhance your gaming experience. High Power: Ready to perform with an impressive 380 FPS straight out of the box, no modifications required. Brand E&C  Airsoft Model EC-337 Firearm Model SII Material Metal Power Source Electric Speed 380 ~ 410 (Replacing Spring) Bullet Type 6 mm BB Hop Up Adjustable Barrel Length 8.5 inch Barrel Thread CCW Dimension    L×W×H 56 × 11 × 37 cm Gross Weight 3.5 kg Net Weight 2.5 kg Battery Plug Small Tamiya