Kydex AR-15 mag carriers are great but they are often molded to a specific type of magazine which can limit their usefulness to those who use multiple types of magazines. The new AR/M4 Universal Rifle Mag Carrier from Fury Carry Solutions is molded in such a way that it will accept and retain just about any AR-15 magazine. It is also somewhat unique in that it has adjustable retention which is not often seen on these pancake style carriers.
These will be available soon. Check out Fury Carry Solutions.