The BLT pistol mag carrier will fit most double stack 9mm/.40cal magazines (tested using Glock, HK VP/P30, S&W, SIG, Springfield Armory, CZ, Beretta, FN and others), just tighten or loosen the single retention adjuster to fine tune the fit. For the thinner double stack magazines like those from SIG and Springfield Armory, Please see the last picture above. The BLT pistol magazine carrier is fully bilateral and the belt clip may be positioned on either side to facilitate IWB or OWB use for both right handed and left handed users. The clip may also be either swapped out for a MALICE clip (not included) for MOLLE compatibility, or removed entirely and the carrier be bolted up to the BLT AR mag carriers for ultimate modularity.
The main idea of the development of the BLT pistol mag carrier is usability. We feel that it will be an excellent addition to your everyday carry needs!