Double Bell SOPMOD M4 DMR AEG 
 
M4 system
DMR out of box
TYPE : AEG
LENGTH : 934mm
VELOCITY(FPS) : 400 (According to Your Local Regulation)
INNER BARREL LENGTH : 500mm
INNER BARREL DIAMETER : 6.02±0.01
MATERIAL : CNN All Metal
FIRE MODE : Safe/Semi/Full Auto
COMPATIBLE MAG ITEM NO.: BI-18
MAGAZINE : 300 rounds (Hi Cap Magazine)
BATTERY : 11.1v Lipo Recommended
HOP-UP : Adjustable
GEARBOX TYPE : V2 Gearbox
BEARING DIAMETER : 8mm
GEARBOX MATERIAL : Metal
PLUG TYPE : Mini Tamiya
BARREL THREAD TYPE : 14mm CCW
Enhanced Model : M4 DMR AEG with a Bipod, 3-9x40 Scope, and Silence
Double Bell 073 , 073C