People who bought cool iconic machine guns like M60, BAR, M1919 that no one has made for a long time and can't be converted from something else probably wont see a lot of competition.
I think the collectability of fully transferrables will keep their value where it is. An 07/SOT can make a dozen brand new Thompsons, M3's, M60's, etc tomorrow and they will never be as valuable to a collector as the real thing. A USFA clone of the Colt SAA is certainly every bit as good if not better than the real thing....but guys like me have little interest in USFA, Uberti, Cimarron or Heritage because they are not a genuine Colt. I'm that way about the Hi Power, and have little interest in whatever Springfield, Girsan, FEG, etc cloned, copied or counterfeited........I want a real FN Hi Power. And no, I dont care for the new FN High Power either. Thats for "collectibility" purposes, not for actual shootability.
If silencers are removed from the NFA expect prices to go up at least for a little while. I expect the United States would buy up the entire world inventory of silencers and things that look like silencers but arent.
Im not so sure about the market for silencers if they were removed from the NFA.
There remains a segment of society that thinks only criminals have need for a silencer. That includes supposed gun aficionados.
The increase in popularity of silencers goes hand in hand with states legalizing them for hunting, certainly that was the case here in Texas.
If silencers are removed from the NFA, yet remain Title I firearms, I'm sure we would see an immediate increase in sales. No $200 transfer tax and no wait would invite many newbies to the party.
That would affect the silencer market in several ways:
1. Increased demand and limited supply means you aren't going to see BOGO's, gift cards and discounts because sales will be brisk.
2. Every jackleg FFL with a CNC and hacksaw will start churning out tubes and baffles. "Fly By Night Silencers.........$59 each, three for $100!!!"
3. No transfer tax and no wait for a Form 1 approval means more home builds.
4. Current manufacturers would add extra shifts to meet the demand.
And guess what, the market will be saturated, prices drop, manufacturers will lay off workers, some manufacturers will go belly up and those that bought crap designs will send to ECCO to get fixed.
FFL/SOTs in business in 2016 remember the Great Silencer Panic. The impending 41F caused a nationwide panic over the new ATF regs requiring fingerprints for new applicants. OMG, OMG, MUH FINGERPRINTS!!!! GOTTA BUY BEFORE JULY 16th!!!! And guess what.....Silencerco added machines and extra shifts to meet the demand, new companies jumped into the silencer biz and guess what? Fingerprints weren't really that big of a deal. You could roll your own, you could use a FP scanner at your FFL/SOT. Once that silencer buying frenzy subsided in mid July the market returned to normal, Silencerco laid off hundreds, idled their new equipment and within a few years several silencer companies like Rebel, Blackhawk, Huntertown, etc went belly up.
With Ruger, S&W, Sig having their own silencer brands I would expect we would see "pistol+silencer" marketing. This is happening with pistols and RMR's now.