LC nylon AK47 mag pouch; rigger made?

a while back I got this pouch in a collection of pouches and misc stuff from a person who we shall not name; he did not say if it was of his manufacture; or if it was a commercial Item; this pouch is made of the same LC material as the flight bag with waterproofing inside; blue-green nylon; 600 denier i think; not 1000 denier... approx dimensions are 8 inches by 4.5 inches by 3 inches; has 3 belt keepers on it; top flap is retained by a strip of 1" velcro; no drain holes, no snaps and no tags anywhere; no writing either. this is really odd; it does NOT feel like its sturdy enough; nor does it feel like it can hold more than 3 or 4 AK magazines or soemthing similar...I do have a british 58 pattern pouch that is pretty close to its dimensions; I wonder if this was rigger made or something for use with AK magazines?

It looks to me like it might be a cover or pouch for a Garmin or similar GPS ......? My thoughts only .....