Sorry it took so long to repy...pulled my neck out and been laid up for a couple of days.
Dan, Mike...thanks! Have a little patience and all will be revealed on the
frames.
Devlin, Phil...Agreed. They will now come with allen screws. Thanks for the imput!
Walter...Thanks for the boost. I try not to let things discourage me. To build my own tsmg...sounds like heaven. I hope someday we can all enjoy our constitutional liberty's as well. We all must keep rattling the cage...now more than ever.
Arthur...not sure I follow your thinking.
"It would seem that one would either go the complete route of replacing the stock WH frame for a completely modified full auto type frame, thereby eliminating the need for the plate, or opt for the quick and easy install of the WH type plate."
I am with you on the modified 28 frame for this is the ultimate. The only part I do not like is to see vintage frames get cut up. We made the longer version in response to a high amount of contour jobs we get. We had to make the part for the job anyhow...just took it to the next step. What I don't get is the quick and easy install of the west hurley adaptor. To install the west hurley adaptor you must:
Remove or grind off the lug
Drill and tap 2 holes
Fit the adaptor to the slide...requires some filing.
reblue
To install our milled adaptor you must.
Remove or grind off lug
Drill and tap 4 holes
Cut off adaptor on scribe line (hacksaw and vice)
reblue or touchup (we will include a small amount of blackfast on request for touch up where the adaptor was cut on the scribe line)
So the trade off is fitting to slide on the numrich model vs drill and tap 2 more holes and a hacksaw cut with our milled slide. Since you would be already set up to tap 2 holes with the numrich slide...it is hardly any work to do 2 more holes. IMHO it is easier to tap 2 more holes and make a hacksaw cut than to file down the adaptor by hand. Plus you get a much nicer adaptor!
"The lock-up of the buttstock is extremly tight and secure with these adaptors."
HUH? Perhaps I missunderstood? I have handled many of these and the dimentional variation is enormous. They are quite a bit wider than "spec" and the distance between the notch that engages the latch and the butt end that stops against the back of the slide channel can have a 1/8 in difference. This could hardly contribute to a firm lockup. They take some work to make them fit tightly...while some cannot be made to fit tightly at all. 4 screws is much more a postive mount and the screw heads can be filled with weld if contouring for even more support. This is a firearm after all. Don't get me wrong Arthur...I do not mean to berate you...It is ok to be happy with your Numrich adaptor.

Thanks everyone for all the constructive imput! Together we can build better mousetraps.
Damon