Well, it's happening....Remington is already ruining Advanced Armament

I have several AAC suppressors. Never had any issues with customer service, until the Remington acquisition. Now I call and sit on hold in the queu for 15 minutes or more and then get a voicemail box that isn't accepting messages. Unbelievable!

Anyway, maybe you guys can help. I have a Tirant 45 that I use on my handguns, but I would also like to use it on my SBR KRISS Vector. I was told not to use the AAC Pistons on a fixed barreled rifle and to get a fixed adapter if that makes sense. So is this true and what do, I need to purchase?

Thanks
SB