Spec sheet claims it will work with "most AR-15 type magazines"... Not sure why they would qualify that, but so it is... Maybe an owner can post their experiences??
I'd encourage you to consider LAR15 10 rounders or METAL 5/10 Beowulf mags. I steer people away from the plastic Beowulf mags and the 5/7 mags as they tend to have problems functioning.
Questar has LAR mags in stock, no deal on them though...