AR15 9mm mags

I'm planning on buying another AR15 but in 9mm this time. It will be A Cat, the lower is Glock compatible but doesn't come with a mag? my question is can you buy 7 shot mags or do you have to buy 10 shot and restrict the somehow?

Cheers Antz

You need to restrict gen round mags, a spacer in the bottom works fine

Cheers

Quote:

---

Originally Posted by res

You need to restrict gen round mags, a spacer in the bottom works fine

---

Cheers

Antz