Mil-Tec open top magazine pouch, single
A simple open top style mag pouch with flexible fit, meaning this can take just about any common assault rifle magazine. Cheap and works well enough.
Open top pouches are great for fast magazine changes. The tradeoff is the lack of protection for the mag. If you don't need to crawl much, these are good. Although meant for M16 style mags, most common assault rifle mags fit pretty well. For SMG and pistol magazines there are other pouches.
Dimensions 8,5 x 3 x 12,5 cm.
Made by Mil-Tec, and these are sort of meant for airsoft use. For situations where someone's life is at stake, get something else, but for recreational sports these are all good. Made likely in China.
These might also interest you
Tasmanian Tiger SGL Mag Pouch M4
Mil-Tec Modular System magazine pouch, M4/M16, double
Mil-Tec Modular System Carrier vest
NKA (No Known Allergies) PVC morale patch
Mil-Tec Modular System magazine pouch, M4/M16
Mil-Tec Modular System magazine pouch, AK47
Mil-Tec Modular System general purpose pouch, Medium
Mil-Tec Modular System magazine pouch, pistol, double
US MOLLE II FLC vest, surplus
Finnish M05 pistol magazine pouch
Bungee cord, by the metre, olive drab
Mil-Tec Dump Pouch