Best airgun suppressor fit for 30 cal and for 22 cal i order mine for .25 cal (6.35mm) supper quiet sound i can hear only the spring dinging and no bang. Perfectly fit to the barrel no modifications needed use it on Kral Bigmax X .25 and 30, Hatsan Blitz .30 and Sig Sauer MCX Virtus .22. if you do not receive confirmation email check your paypal payment for their email and send them email remainder in case there is issue with website apart from that all good they also respond via whatsaup if you message them.