Marui Knights Type Pro Silencer
 

I just received my Marui Knights Type Pro Silencer today and when I installed it on my Marui SIG 552 it doesn't look like it's on straight. I know I threaded it right because I removed it and installed it a couple of times. I was just wondering if anybody else with a Marui Knights Type Pro Silencer has had this problem also, and if they know how to fix this problem. Any help and suggestions would be appreciated.

mine looked like it was on crooked as well. on the g36 and the m14. but it still shot straight. i think its just how it looks