Just a comment to the group; thank you for a wealth of info.
I went to the LGS to hold a couple of these and enjoyed as expected.
However, the first model that I picked up was a two tone with loaded chamber indicator and safety when mag released. The mag would not release or engage easily... I assume too much going on in the safety interlock. think twice about this model.
black-over-black no-frills was smooth as silk... consider that. js