I have had a 45 Tirant silencer for about 5 or 6 years now. Its a good silencer. Works well and I have a bunch of pistons and adapters so I was thinking of buying another for compatibility. I did have an issue with it a few months ago where all the guys went downrange. I found them all and I didnt see anything that looked like a baffle strike but obviously there was an issue and more than anything I wanted the threads checked out on the end cap so I sent it in to AAC in Alabama to get looked at . That was 10 weeks ago. Ive called several times to see how my silencer is doing and when I might get it back. They dont know. They havent even looked at it yet. They cant tell me where it is in the queue or anything other than "it might take 7-8 weeks from the time we get it to get it repaired" . OK. Its been 10 weeks so wheres my silencer? "Oh, we havent looked at it yet but it can take 7-8 weeks". . I know what happened. AAC , Once a good company with a strong history of innovation and customer service got bought out by Remington and now all that is gone. I'll get my silencer back someday but as far as new purchases go AAC is dead to me.