Set screw secures in the little divot on the bottom of the barrel.
I simply don't see that ever happening.
I'm not an engineer of any stripe but I have a vague understanding of manufacturing and economies of scale so here's my unsupported and largely unsourced ramble on the theoretical potential future of the suppressor industry in the market
1. There are some 4.8M suppressors in civilian hands according to the latest data
-1.1 I have absolutely no idea about the exact specific details of this data, for example it could include registered Maxim's owned by rich guys in the forties that were sold as scrap decades ago, random Gemtech's that were destroyed in house fires but were never actually reported destroyed etc etc.
2. Assuming the original number is largely accurate that means since 1934 less than 5 million suppressors have been Form 1/4'd since 1934 (although if we really want to be accurate civilian suppressor sales didn't REALLY start until after the AWB for a variety of reasons including state bans, tax stamps, culture and general ignorance)
3. It does not make sense for a manufacturer to scale production if there is not a great demand.
4. Long wait times, A tedious paperwork process for both buyers and sellers and a $200 fee have all suppressed (hehe) sales, refer above to point 3
5. Eforms, Digitalization/Silencershop, repeal of CLEO approvals and hopefully soon a lack of a registration fee will cause a spike in sales
6. Increased demand will potentially lead to a scaling up of manufacturing and new players entering the market increasing competition
7. Economies of scale could lead to reduction in prices and increases in availability
8. Decent European suppressor are like $500
If the tax stamp repeal actually goes into effect it might actually be the event that causes SilencerCo (which I would think is America's largest suppressor manufacturer besides Surefire) to invest $5M in an actual stamping setup for baffles and a bunch of smaller shops to bite the bullet and drop $800k on a decent DMLS
But what if companies are greedy you say? Well, you can't really account for that but take into consideration that the suppressor community love their wholesome chungus manufacturers, just look at OCL.
OSD just put out an article about this doing a bunch of nerd math
To further reinforce my point somewhat, here's an Ase Ulta 5.55 K can being sold for 600 euros ($707)
Now keep that price in mind, because it's being manufactured (in relatively small quantities further increasing per unit price) in a country with European labor costs and tax rates before being sold to a retailer that has to deal with those same expenses AND make a profit
And here's a price list for Maxim silencers circa 1916, $7 in 1916 is $206.45 today. And this is without cost savings from automation and mass production. Not to mention design optimization
We can see from a scanned copy of the catalog that page is from that the Military model for Springfield rifles is $9 ($265.43) and that a model for machineguns is $100 (2949.22 and obviously sold at a massive mark up)
So I think it wouldn't be impossible to see $350 17-4 stainless suppressor that Can survive a full auto combat load magdump in the next few years.