Constructed by metal, the ICS AEG Gearbox Assembly for M4/M16 Series is an excellent piece of equipment that is used as a replacement or upgrade to an M4/M16. The gearbox will boost the FPS of your rifle to 400 feet per second. Having an additional upper gearbox is equal to having another gun in urgent situations. This upper gearbox easily saves a user time and allowing for adjustment to muzzle velocity within minutes and is compatible with most aftermarket M4 airsoft parts, such as pistons, cylinders and springs.
1X ICS M4 Metal Upper Gearbox with screws
1X ICS Aluminum full teeth full metal piston
1X ICS Version 2 reinforced air nozzle
1X ICS MC-02 Tappet plate for ICS M4
1X ICS Version 2 Ball bearing spring guide with screw
1X Reinforced Aluminum Piston head with ball bearing
1X Reinforced Aluminum Cylinder head
1X Reinforced cylinder
|Includes||One (1) Upper Gearbox|
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