Springer Precision recently rolled out their latest offering.
For the GLock 17/34 is a +5 magazine extension.
These +5 Glock magazine extensions are machined from billet aluminum and hard coat anodized.
Currently these Glock magazine extensions are offered in raw white, black, blue, and red.
These tactical magazine extensions also come with an extra power spring and features deep serrations machined 360 degrees around the extension to allow a greater purchase for pulling power.