They are a great company I have a CMMG piston upper and a CMMG lower that I put together with there kit... when I was at the range one day my hammer pin broke in half I didn't notice until I got it home, I called CMMG and they sent me a new one for free. I know hammer/trigger pins are cheap but it still was very nice of them to do. Any questions I have about my rifle or other rifles they sell they answer. My father in law and brother in law bought there Bargin Bin guns... they look brand new. Good customer service too.





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