Our take: The Element CNC Aluminum Cylinder Head Ver.II is designated for use in the V2-gearbox installed AEGs. It is well-built and crafted of high quality material for long-term durability. This cylinder head is constructed of high quality anodized aluminum, and features double O-rings for maximum compression.
Disclaimer: Any and all airsoft upgrade parts purchased from Airsoft Megastore will be used/installed at owner's discretion. Actual performance results depend on quality of installation, airsoft AEG barrel length, tightness of the air nozzle seal, and other possible performance-affecting factors. We are not responsible for any damage that may occur with improper installation. For best results, please do all upgrades at a certified professional airsoft technician/shop.