ProWin M4-M16 Hop Up Chamber MK28 Upgrade By using six different varieties

By using six different varieties of wires along with six different variances of winding we were able to experiment with a total of thirty-six varieties of rotors

Fully Adjustable Green Laser: 532nm

The heart of the new system is a new advance lightweight gas piston that increases the weapon cycle rate which provides for a faster and more realistic blow back action

Description: Selector switches for Echo 1 Task Force Black

(TM M733 you must remove the fake gas tubes)

ProWin M4-M16 Hop Up Chamber MK28 Upgrade By using six different varietiesDescription: ProWin Complete Hop Up Chamber for M4 M16 AEG Specifications: CNC construction Improved air seal Lightweight and durable Blue Fits Marui style M4 M16 AEG One Piece Complete Hop up Chamber