The MD-9 was engineered to fit the growing demand for cutting-edge AR9 style rifles for today's Military and commercial market.. Another big difference I noted about the guns right away was that the PDX has an adjustable gas block, whereas the DDM4 PDW is more of a ....

When youre looking for Maxim Defense ingenuity in a new standard AR-9, the MD-9 is your answer. The MD-9 was engineered to fit the growing demand for .... Maxim Defense went with a barrel length of 5.8″ to maximize the velocity and hence accuracy of this PCC.

The optimal barrel length for the 9mm .... Once you do, it is essentially useless for any other load. I shoot three different PFs, depending on the match.

I was not willing to reconfigure ....