Form 1 cans are out. They will now deny you because "intent" is indicated by filing form 1, therefore any part you buy is legally a suppressor by itself before manufacture.
If you have a laser sintering machine, aka metal 3d printer, the powder you use to print a suppressor, the powder is a suppressor before it is a suppressor.
If you buy a chunk of pipe from home depot, it's a suppressor before its a suppressor
If you buy an oil filter, it's a suppressor, before its a suppressor.
Basically, form 1 cans are dead because they have made a huge catch 22
I've seen some guys still getting through because they have lathes and said they are planning on buying some barstock, and machining it into the cups, and general body. The turnkey drill a hole kits are out though, which is stupid. Suppressors are one thing that would be so nice to be able to afford without being on a freakin list. Keystone range gets complaints cause of noise, noise noise noise is every complaint! Let me silence my damn gun! We put them on cars, and motorbikes.
How many "state sanctioned" shooting events are there in a state that hates guns?