WE - M4 Open Bolt CO2 Magazine Black EBB Wide range of supply voltage:

Wide range of supply voltage: 3-17V

A shot glass styled after the flash hider from the M4/16 family

3 HYBRiD Mecha Box which is fully compatible with all V3 Gearbox's in the market place today so upgrading a piston or bushing or bearing shouldn't be a problem

SHS 18:1 ratio gears

having fewer moving parts and jams

WE - M4 Open Bolt CO2 Magazine Black EBB Wide range of supply voltage:The magazine uses a 12g CO2 bulb which goes in the bottom of the magazine and is covered by a large flat bladed alloy release cap cover. The magazine is also very easy to strip and maintain with only 2 screws holding the main components together. Once the magazine is empty your GBB weapon will also lock back until you change magazine. This bolt stop function can be disabled with the press of a button located on the top of the magazine.