This is likely not a Perazzi part per se that I need but here goes anyway. Recently bought a under barrel to fit my MX8. The top barrel portion has a ' snap cap ' in it. Had to remove the snap cap to add some weight to balance gun to my liking. In the process pretty much ruined the ' snap cap'. It says, "WANDA" PAT PENDING and is maroon in color. I need this particular one as the OD fits the ID of the barrel chamber perfectly. Where can I find one?