Commercial suppressors are made from bored and clipped cones. The cones may be tig welded, eliminating the tube (which weighs about 6oz if for a 1.625x1.5x7.5" titanium), and depending on the individual this could be and is done on a form1 as well, but the materials and design are really not any different.
All materials and designs from a commercial suppressor can be replicated on a form 1 and most or all components to do so are readily available. I am not talking about an aluminum solvent trap kit or some sort of oil filter or anything monolithic.
There is no reason a form1 suppressor cannot equal or better the performance and durability of a commercial. These are straightforward and readily available designs and straightforward components made on a lathe. This is literally like saying you cannot assemble a barreled action from parts and equal the performance of a factory barreled action.
If you want a warranty, or if you aren't going to put the work into laying it out, sourcing quality components, and doing the machine work to make it right, if you can't deal with the extra 4-6oz for a tube (assuming you aren't going to tig weld it), or if you just prefer to, then buy a commercial can.
Again, there is tons of information and there is actual data, gathered with actual lab grade equipment, available but it is not on this forum.
