you probably will have better luck finding 20s. most of the ban era 10 rounders were just blocked 20s so it won't save you any space or reduce the profile.
Yeah, I'm overrun with 20, 30, and 40 round mags but I only have one 10 rounder. Midway USA has some for sale but I was hoping to find some gently used (aka cheaper). I've found that exiting a vehicle in a hurry, the 20 round mags can snag. I guess I'l give the 10 round plastic mags from Midway a shot and see if the function.
Thanks
You might check with C Products for the dimensions on their 10 and 5 rounds mags for the AR. C Products Store
I have one of their 10 round mags that came with my RRA AR and it is smaller but I'm not sure if they'e still making them. It works fine.