These are the magazine pouches for most of the popular PCC rifles.
They come now Standard Double Layer.
You can choose either open front or closed front.
Open front we wrap from the bottom, that leaves the front of the pouch more open and the pouch more flexible. The open front pouch is a bit quicker, but does not retain near as well.
Closed front, we wrap from the front, This pouch is extremely rigid and will retain all mags.