Since I have the gun system with the same base..
I can say... these are (1) ugly, (2) don't hold the guns all that well, (3) can't be split to put one on each side, (4) overprice, (5) did I say ugly!
I'm kind of annoyed that they didn't come up with anything better myself. I think a hardware screw in hook on the sides would be better then this thing myself