I used one of their drop leg tactical holsters (think it was the omega) while on my first tour and it fit the M9 well, plus had a spare pouch on front for another mag. The only thing I would have done was to add an extension to drop it lower on the leg and I had to wear mine "loose" with the leg straps otherwise it would tug at my belt and like it was trying to pants me or if kneeling and stood up it would pull my pants leg up (only one of the other guys that used this rig liked it out of 20). This was in part because of the two stips of rubbery gummy material in the strap for added grip. I ended up picking up a cheap universal fit shoulder holster from the PX trailer set up at BIAP as soon as I got back. My next deployment to the sandbox I used a GALCO MIAMI shoulder holster which I purchased instead of using the issued blackhawk rig. Some of the guys that stuck with the tactical leg rigs switched to safariland rigs and liked them, with none of the problems the blackhawk had.