Our take: The SRC M4/M16/V2 plastic two-piece hop up chamber, designated for use in M4/M16 Version 2 full metal gearbox AEGs with two piece hop-up lower receivers, is a well-built factory replacement part for your compatible M4/M16 Airsoft rifle. This hop-up unit DOES NOT use a rubber hop-up nub. The concave H-Style nub is built into the hop-up arm. SRC, renowned for quality, uses these hop up chambers in their sportline SM4 and SM16 series of AEGs.
- High quality, value-minded price
- Durable ABS plastic construction, with high quality build materials
- Version 2 gearbox compatible
- Comes assembled from the factory (hop up bucking is NOT included)
Note: NO hop-up nub is needed with this hop-up unit.
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.