http://www.prog4.com/db/product-show.asp?refno=AR1429
"For WA R-Type, WA SCW 2, WA SCW 3 and Marui"
I really think they would make the same style slide/frame/barrel, but under different system....they sell mostly WA stuff to start, then they start carrying the same style lower frame as Redwolf's AS stuff for TM, I think they make parts for both.....