I think Glock-a-roo has the ultimate Best answer to your need!A G-19 mag used like a Pez dispenser,thumbing the rounds directly into the cylinder should be very quick & You will like the G-19 mag before too long,I'm sure of it& You'll end up getting a G-19,hence, eliminating the need for the Ruger!Why enjoy a 6-pack,when you can thoroughly enjoy an 18-pack? cool