depends on the pouch, I've squeezed 152s into crye JPC and AVS 148 pouches, couldn't get one into a knock-off one though.
Here's mine in one http://i1195.photobucket.com/albums/aa398/mack1984/0CB9EED4-3C5C-445C-9761-75A0DC69733A_zpsamzksugs.jpg
Cool, i plan on using this pouch http://www.airsoftpeak.com/molle-mbitr-radio-pouch-multicam-p-1472.html and the ztac dummy 152