I have 6 G-17 10rnd mags and 1 G-19 10rnd mag, 5 of the G-17 mags have the old 2183-1 followers 1 G-17 mag has the 9mm1 follower, the G-19 mag has the9mm1 follower also. all mags function great . 1 mag as you can tell from the picture has some scuff marks on the front of the mag. I want to sell all 7 for 40.00/shipped. paypal ok.