I'm looking to mail-order a new complete upper (with or without bolt, I have a spare) for a new lower I just bought.
The only must-have is a 16" with threaded barrel (so I can use my AAC suppressor on it). Beyond that, I like the idea of a lightweight profile, unless the skinny barrel is much more affected by the suppressor's weight than a heavy barrel is.
I've found the three mail order houses in shotgun news, and prices all seem right in the same range; frankly one of them (Model 1?) has whole gun kits just missing stripped lower for only $80-$100 or so more than just the upper. This seems like a good idea, since for that $80 or $100, I'd get the bolt, charging handle, stock, recoil spring & buffer, and all the parts needed to rebuild a stripped lower.
Any word or advice on brands or suppliers to avoid or try first..?