Brand New Glock Factory +2 Base Extension. Fits most 9mm and .40 S&W/357SIG options. Will not fit .45 ACP or slimline 9mm models.
Comes with Base and Base Pad. No spring included- reuse your existing spring. Both factory Glock Parts. Adds +2 for 9mm and +1 for .40/357SIG. You will need a removal tool to get the factory bases off.