Magazine Sleeve for Using Glock 23 Mags in Glock 27

This is a sleeve that fits over Glock 23 magazines to provide a more comfortable grip when used in a Glock 27. It should fit with any backstraps installed. Should also work for using G19 mags in a G26, although I have not tested that. Designed for a Gen 4 G27 with the finger grooves, I'm not sure how it will fit with other generations.