Action Army VSR-10 Hop Up Chamber 6mm (0.23-0.66g) AKA the Namazu hopup nub

AKA the Namazu hopup nub metal pin - may need to be filed down slightly for a flush fit with the prometheus

We highly recommend this holster if you want something

Reinforced cylinder for heavy duty upgraded spring pressure

Shoots 340-350 fps w

Works in all the 1911A1 and 1911 tactical models

Action Army VSR-10 Hop Up Chamber 6mm (0.23-0.66g) AKA the Namazu hopup nubAction Army VSR 10 Hop Up Chamber. Upgrade your stock chamber with this CNC machined unit. Fits Tokyo Marui VSR 10 sniper rifles, Echo 1 PSR, clone guns, JG BAR 10, etc. This chamber is a great compliment to the Wolverine BOLT system too! The Action Army Hopup Chamber is a must have for VSR sniper rifle users. Its easy installation and simple operation is a breeze compared to the PDI system. Highly recommended for custom rifles! Yes, we export VSR