I cleaned the baffles of my Tirant 45 and re-assemble it.

i did not notice that the front end cap wasn't screwed all the way in so I shot all my baffles into my backyard. Of course I found all the parts except for one middle baffle.

Will AAC replace my one missing baffle? If so how much?

I am sorry to inform you that you are screwed without at least a fragment of that baffle or face payment of another stamp.

You are right they screwed me . This is one company I will NOT buy suppressor or any other products. customer service is the WORSE!
and I still have to pay for the return shipment of my UN-repaired suppressor.

One of my biggest regrets buying AAC