XGRIP mag adaptor for full size Glock mags in G19 or g23

Use full size Glock 17 or Glock 22 mags in your Glock 19 (9mm) or Glock 23 (.40 S&W). Works with OEM Glock mags and slides right on. Compatible with Gen. 3 and Gen. 4 mags. 

New Old Stock.