i have a walther p22kit that comes with the suppressor. im still waiting for my stamp approval. i aslo have an FN fiveseven. both rounds have a .224" diameter. i wnat to get a threaded abrrel for my fiveseven, but the only one i can find is from jarvis and is only made with a 10mmx1.0 thread pitch and the walther is 1/2x28. my question is: does anyone make an adapeter to go from one thread pitch to the other? i can find any info on this anywhere. thanks for any help.