The Pro MAg magazine is compatible with your Glock 23/27. It is constructed of DuPont Zytel polymer with full length steel internal insert, injection molded mag follower and mag spring formed from chrome silicone wire. Made in the USA.
ProMag GLK12 Standard 6rd 9mm Luger Compatible w/ Glock 43 Black DuPont Zytel Polymer
$16.00