Available from 50 – 80 degree rubber hardness to suit your airsoft needs.

For use with TM, WE, KJW and all other standard/aftermarket open cut GBB pistol barrels, and open cut (no Bridge) VSR, L96, AS01 barrels.

C Ring supplied is optional to use, to improve air seal, but too tight and this can wear your hop!

Please note that these are for airsoft use only.