Features:
1:1 Scale High Power Gas Blow Back Rifle.
With Open-Bolt system , this gun shooting higher Fps and having great blow back effect .
Full Metal Aluminium Body (No Marking).
 Except Stock & Pistol Grip, this GBB is entirely metal .
4-Sides metal RIS handguard allows to attach any accessories .
Peep sights for quick acquisition of targets and keeping scoped in while still being able to monitor the surrounding area.
Rear Sight and Hop-Up is adjustable .
14inch 2-Piece Aluminum Outer Barrel .
4-Position Extendable Telescope Stock for both mid range shot and CQB situation .
Special designed grip that you can hold this weapon tightly .
Infornmation:
Model: HK416 
Materials: Steel, Zine Alloy, Nylon, Rubber
Length: 760/850mm
Weight:3500g (4.2 pounds)
Power Source: GBB
Action: Semi
Ammo Type: 6mm airsoft BBs
Ammo Capacity: 300 round magazine
FPS: 400