Since you have reworded your question, I’ll need to reconsider my answer. Can you send a link to the item you are asking about?
I legitimiately have no idea.Never heard of such. Toys?
What you're thinking of is solvent traps. Those are what you would purchase and possibly machine the caps and file form 1 to use as a can. They were sold to catch cleaning fluid. The ATF has recently, or shall I say about 3 yrs ago, began attacking companies selling solvent traps. Diversified Machine was the first big one.I recently ran across fake/trainng suppressors. Are these made with the intention for people to machine them out? Or are they legitimately training aids?
Nope. Just ordered one.Why? Are you ATF?
It's best left in the realm of wonder and word salads you know like Bill Clinton saying "That all depends on what the definition of is, is"