Two rails systems were released with the PTS Syndicate and Centurion Arms partnership. The first one is the C4 Rail System which was discussed previously; and now for this video is the second one, the CMR Rail System... "Monty Leclair, US Navy Seal and owner of Centurion Arms discusses with PTS his Centurion Arms CMR Rail System, the thought process behind the design, the accessories, and the PTS licensed airsoft counterpart."