I wouldn't recommend it due to the high cost and proprietary mags.
I guess you could say I felt some of what you are describing when the Taurus SMT-9-type carbines came in... although they're both just cheaply made, blowback 9mm subguns with extrusions over polymer lowers.
I bought one when they discontinued them and the price got slashed, and I've taken it on as a project to turn it into an SBR.
Anyway, I'm sure the OP aintgottimefo'dat, and I love, love, LOVE my 635-type with a Hy-tech block, so my advice remains the same.
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