Tyrant CNC Glock Magazine Extension, Glock 43x/48, 9mm, 4-Round, Red, TD-G48MAGEX-R

Adds 4 rounds to your factory magazine AND includes a 10percent power spring. Drop your mags faster and grab them easily with their machined inlay Why do they install so quickly? they use their retention plunger technology that allows the magazine extension to easily slide onto the bottom of your...