Rotary Magazine shell

I have this Rotary magazine shell extra. It's not dented and very serviceable. It does have some pitting, particularly on the rear where it will be covered by the buttstock. It's "in the white" since being media blasted. You might be able to fill the pits with auto body "red" finishing putty and then paint with Brownells Parkerize color paint, or Duplicolor Cast iron grey...looks a lot like parkerizing. Black would do also.