If an AR-10 rifle has SR-25 pattern magazine on its spec sheet, does that mean any after-market SR-25 magazine will fit into the rifle?
I am looking at Stag Arms STAG -10, which takes a tiny magazine that is not only rumored to be "California compliant" but is also rumored to be legal in Canada. What worries me is that this rifle has some tiny mag on it that is somehow permanently fixed to the body of the rifle. I'd like to use an after-market drum magazine. Your thoughts?