I am new to here so i do apologize, this subject has probably been covered somewhere else but am still fumbling around on here trying to figure all this out.

My question is, has anyone used a higher capacity magazine for the 10FCP-K? The only one I have found for this model is on sharp shooters supply? I have tried calling them many times and cant get in touch with them for whatever reason. Are there any other manufacturers that make high cap for my rifle or is the one from sss the only make. Thanks.