Fit information from the manufacturer:
A polymer-reinforced mag pouch for .223/5.56mm magazines. Fits smooth-sided magazines only, like AR-15/M16, Steyr AUG and similar.
Does NOT fit magazines with reinforcing bands around the top, sharp protrusions which extend out the sides (like HK metal mags, Kalashnikov and certain subguns mags) or shoulders to prevent over-insertion (Sig 550-series, HK G36-series).
A Wilderness standard wraparound belt loop allows this pressure-retentive case to be put on and removed without taking your belt off.
Fast access due to the strapless friction fit, quick-detachability and good concealability make these pouches especially suitable for executive protection details requiring heavier weapons than pistols. Fits up to 1? width belts.
Break in instructions from the manufacturer:
BREAK-IN PERIOD FOR MAG POUCH FITTING
Our mag pouches are polymer lined and use friction to maintain a snug fit on magazines. This polymer liner takes about a week to mold to your mags and may seem really tight on the insertion at first. We advise leaving the mags in at night. When inserting mags into the pouches, roll the mag in front to back, using the index finger along the magazine's spine and the round noses of the bullets to open the pouch mouth a bit as you push the mag in.
Once broken in, magazines are easily inserted, held snugly, and release like smooth, greased lightning on the withdrawal because of the nylon skin of the pouch. Our pouches do not bind like Kydex, which often forces you to pull perfectly straight up to get the mag out. They are also more consistent than many leather mag pouches whose tension seems to vary a lot.