This Version 2 M4A1 Gearbox is custom designed for durability and reliability. Most internal components come pre-upgraded to enhance functionality, including the high strength gear set custom SP120 tune-up spring. Each gear has been pre-treated with Teflon grease to encourage smooth, flawless gear function. This gearbox upgrade is a great option with lots of aftermarket features, and is compatible with all MP5, G3, and M4 AEGs currently available on the market.
NOTE: Airsoft Megastore recommends that all internal upgrades and/or repairs be handled by a qualified airsoft technician. Airsoft Megastore is NOT responsible for improperly installed replacement or upgrade airsoft parts. DO NOT disassemble your airsoft gun within Airsoft Megastoreâ€™s warranty period, as this will VOID your warranty.
1X complete Version 2 gearbox
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