Totality is out of business, also a couple of other companies (can’t remember names for certain) were selling inferior grades of stainless and titanium as better material.I bought my tube and endcap from diversified machine it is their asr tube its threaded 1 3/8x24 so I can use Dead Air's omega mount. The baffles I bought from totality industries 2 stainless steel 5 titanium. I'd post a picture but it never works for me.
Freeze plugs (in my experience) yield such a lesser result compared to getting cones/spacers from a solvent trap company and going that way. No mesting of one plug into the other, more resilient, known alloys, heat treatable, just a better overall package; more costly, but worth it IMHOI've done two form 1 "caveman" style d-i-y suppressors. The entire build is documented here under a thread that I started (I'll find it later). I used tubes from a couple of places, both still in business. I used pressed freeze plugs, mild steel & stainless, from local & online sellers. I have a die set to squish those plugs into a cone shape. Once you get your ATF approval, drill the holes and drop them into the tube with some strategically placed spacers.
Here's a video. Listen to the 4 shots then the hammer falling click.
[video=youtube_share;rUwVhnejekE]http://youtu.be/rUwVhnejekE[/video]
Squishing freeze plugs:
[video=youtube_share;x-d3wQuvhww]http://youtu.be/x-d3wQuvhww[/video]