M4 9"MRF-M-CQB
(Full Titanium Standard Torque Gear Set  Gearbox)

Specifications:
Hop-up : Original One Piece Hop-up Chamber
Gear set : Titanium Gear
Magazine Capacity : 300 Rds Magazine
Overall Length : 705~795mm
Inner Barrel Length : 247mm
Muzzle Velocity : 320~350FPS(97~105MPS) with 0.2g BBs
Battery : 7.4 ~ 9.6 V
Weight : 2.9 kg  (without Battery and Magazine)