Quote:
Originally Posted by techobo
I was under the impression that CA's receiver, even though compatible was a little bigger than TM's. I have never mixed uppers and lowers before, but I know that I have put a d-boys RIS on a m15a4, the CA receiver rails sit a few mm higher than the d-boys front end RIS.
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would the dboys ris you installed be one that huang sells? how is the fit on the CA, is it solid? might have to shell out for the CA ris, but if i can get the cheaper alternative, it would be great.