Or perhaps some good references for research?
So much to cover silencer shop has some decent info and of course you tube for reviews and such. Can't remember the name but there's a website out there with all kinds of sound tech research on a large numbers of cans.
Mounting systems are all kind of personal preference. YHM qd mounts were big for a while. Dead Air keymo, silencer Co and surefire are probably the big 3 right now in qd
My general thought is given the hassle of dealing with NFA etc I like my stuff to be as versatile as it can be. All my gas guns are dead air keymo mounts so any can I buy needs to fit the dead air keymo adapter(exception direct thread for bolt guns) currently the two pictured above one YHM 5.56 and one dead air .30 cal both set up with keymo to be interchangeable with different rifles.
After that just depends on what your looking for in a can more sound suppression usually means longer and heavier cans. Shorter light weight cans usually means louder not as hearing safe.
Trusts
If looking at doing a NFA trust I would suggest going a full NFA trust from the start. Silencer shop single shot trusts are nice easy and cheap but can't do form 1 and let's be honest who really just stops at 1 can. Just do an nfa trust from the start and have 1 trust for all nfa items. Silencer shop and I'm sure other websites have good info on trusts
Large format AR's and cans unlike most current AR15s made or built using reputable manufactures adding a suppressor the gun will still run reliably just maybe a bit more gas blowback.Large format ARs like .308 6.5cm are a giant frustrating puzzle to get gassed correctly when adding a can even with adjustable gas block. Although pricey almost better to spend money on a quality brand designed to run surpassed out of the box. Or over build the buffer system from the start and get the longest gas tube you possibly can.
