The Millett 10 rounders look like POS' = clear plastic, However, they function flawlessly which is , afterall, what you want.
The clear plastic, actually a clear smoke color, is tougher than an Army Boot, and lets you keep a visual check of the rounds left in the rifle, a + feature in my way of thinking
I have 5 of these and despite my initial reaction to the plastic appearence, have found much to recommend them...pretty is as pretty does
I don't know about Millit magazines, though that sounds good, but Mason 10 rounders, at least the one I bought, works fine. I have used many aftermarked 20's and 30s, some good, some bad, but Mason's 10s do work. Very handy to!