Matrix Universal Cheek Pad with Ammunition Loop
(Color: Black)

"A very well made pouch for $20.
I bought this to go on a real steel shotgun (M500) and am impressed. The nylon fabric is reasonably thick and seems robust, the shell loops too. The stitching is solid and nothing feels loose. The pouch is moderately spacious and looks like it would fit at least two AR mags side by side without a problem. The pouch includes two shell caddies, the inside of the pouch is lined with velcro to accept the second caddy. The loops are too tight to fit shotshells without problems (Shotshell loops can be had for _$3 however) but seem like they would fit shells in the .30 caliber range. I'm not sure what the purpose is for airsoft as very few people use shell ejecting rifles but the velcro panel would take a patch or two.
The only issue I have with this pouch is the straps. They are unnecessarily complicated, the product photo does not have them set up correctly. They're also a bit short, should work well for most rifles but they had trouble reaching around my fat shotgun stock. I ended up using some straps I had lying around that had slide buckles.
As far as I can tell the strap slides up the fabric loop on the left side of the stock and velcros onto the inside wall of the cheek pad, there's a velcro panel on the inside. The other end of the strap then loops around the bottom of the stock, through the metal ring on the other side of the pouch, and velcros to itself. This may not be the way but it is a way, I haven't tried this however as I solved the problem my own way.
Looks great on my Mossberg and hides my ridiculous recoil pad nicely, a great way to carry an extra 10-12 rounds. Good day.

-A former Airsoft GI employee

"As mentioned this is great. Works like a charm, and feels better than a plastic or metal stock. Slightly raises your head and helps with scopes etc. Great for snipers 5/5

"This product is amazing! I got this earlier this years and I've taken it through brush, trees, etc and it didn't even scratch. Great material, nice leather cheek pad, well done stitching, I recommend this for a shotgun or just a cool looking dual purpose external battery pouch.