FIND IT HERE! https://doublemdefense.com/product/pearce-grip-pg431-magazine-extension-made-of-polymer-with-black-finish-3-4-gripping-surface-for-glock-43/ 

Factory New.

UPC: 605849200477
SKU: 605849200477

Item Description:

This extension replaces the magazine floor plate providing one extra round of capacity and approximately 3/4" additional gripping surface for better control and comfort while also incorporating the factory texture pattern.

Item Specifications:

Brand Pearce Grip
Category Magazine Accessories
Model Magazine Extension
Caliber 9mm Luger
Firearm Fit Glock 43
Capacity 1rd
Color Black
Material Polymer