Magazine arrived today! Flush mount version is much nicer than the factory 10-rounder, and to my surprise has a metal base plate (which matches the bottom metal finish very well). I was also surprised by the very positive "snap" into place when seated........thanks J.Baker for the suggestion.

On a side note, waiting on a new bolt handle to replace the goofy oversized and long OEM handle.....hopefully it'll be "pic worthy" soon.