If you are a new gear maker, let Henry Holsters’ PMAG Carrier be a lesson to you in attention to detail. The Hoosier kydex bender has taken the time to block the top of the magazine for a round on the right or left. This allows the the carrier to hold a full magazine, a partially depleted magazine with the top round on the opposite side, or completely empty magazine with no resistance.
That is attention to detail. Check out Henry Holsters.