Olentangy Liberty Group has introduced a line of universal magazine pouches which are compatible with handgun, rifle, and SMG(PCC). These magazine pouches comes in 4 mounting options: 1.5” gun belt, cloth loop molle, laser cut molle, and competition belt (2 layer Velcro belts such as DAA premium belt). Both single and double decker options are available, allows the user to carry 1 or 2 magazines vertically stacked.
Olentangy Liberty Group released the stl files of these magazine pouches as usual. Anyone can download and print them if they have a 3D printer. These magazine pouches are also tested for compatibility on different magazines. They are compatible with the mass majority of magazines currently on the market now. Here is a non-exhaustive list.
Handguns:
Double(quad) stack magazines: Glock 9mm/.45, CZ TSO 9mm, USP .45, Pardini 9mm, Hudson H9 9mm, Keltec CMR-30/CP33, 2011.
Single stack magazines:1911, Tokarev, CZ 52, Luger P08, S&W Model 41, and HK P7.
Beretta 9mm 15 round fits a bit loose. double stack Concealed carry handgun magazines with a slimmer profile may fit loose as well. Double decker for single stack handgun magazine pouch can fit two 10 round 1911 magazines but is very tight.
Rifle:
Intermediate – STANAG, AK-47/74, CZ Bren 2 7.62*39
Full power – SCAR-17, FAL, SR-25
12GA – JTS M12AR
SMG(PCC):
9mm – MP5, B&T, Sten, Uzi (airsoft), Glock extended, Sig MPX
.45 – Vector (extended glock magazine), UMP (airsoft), Grease gun
2 UMP 45 and Sig MPX magazines will not fit in the double decker without modification to the magazine pouch.
See the double decker magazine pouch for single stack single feed handgun magazine pouch test here.

Visit - https://olentangylibertygroup.com/product/universal-handgun-magazine-pouch/