ICS Complete Reinforced Upper Gear Box Set for ICS M4 / M16 Series Airsoft AEG

ICS Complete Reinforced Upper Gear Box Set for ICS M4 / M16 Series Airsoft AEG
One of ICS M4 series's most distinctive feature, is it's two piece gearbox. It allows the user the ability to install a spare one in seconds to alter the power, performance and functionality of his/her M4 in seconds. Thus, here you go! An spare upper gearbox you need with all the reinforced parts you need! Offered to you by your ICS USA distributor Evike.com!
Having a spare gearbox offers you an solution in the middle of your games when an internal part wears off. Due to different FPS regulations in various fields, it also allows your rifle to be changed to the correct FPS by swapping out the spring, or the entire gearbox in seconds!

Features / Applications:

• Having an extra ICS upper gearbox is equivalent to having a spare gun in critical situations.
• Factory direct replacement gearbox with ICS reinforced internal parts.
• Have a spare gearbox so your gun works for indoor FPS regulations and outdoor FPS regulations.