FireFly Namako Hard Hopup Rubber (VSR-10, Hi-Capa, ...)
Because of two point support to BB you get stability in hop rotation and improve the range and accuracy of your replica.
Use 0.25g BBs 0.28g or heavier BBs with hard rubber.
Please check out this wonderful part that will improve your airsoft custom and tuning.
This Chamber packing that is the most popular in Japan.
Fits: TM VSR‐10 Series / Hi‐Capa Series / SIG P226 / M1911A1 / SOCOM Mk23/*fits latest M9A1 and Samurai Edge (Jill Valentine version)