The Firing Line Forums - View Single Post - Ruger 22/45

Contrast Man · February 18, 2013, 04:14 PM

Mark II and III magazines are not interchangeable. I'm not at home right now, but I have a 22/45 mark III and I believe that mark III is on the upper on the left rear. I don't know if the mark II had this or not. For mfg date, send Ruger an email with the serial number and they should be able to tell you.

February 18, 2013, 04:14 PM	#3
Contrast Man Senior Member Join Date: November 2, 2011 Location: Illinois Posts: 178	Mark II and III magazines are not interchangeable. I'm not at home right now, but I have a 22/45 mark III and I believe that mark III is on the upper on the left rear. I don't know if the mark II had this or not. For mfg date, send Ruger an email with the serial number and they should be able to tell you.