Glock MOS Adapter Set 01 nDLC G17 Gen5, G19 Gen5, G34 Gen5, G45 Gen5 (9mm). The Glock MOS allows the shooter to mount the sight of their choice, easily and quickly using only a few tools. The versatility of the system makes changing optics easy. Switching from one sight to another is as simple as removing the old sight, removing and reinstalling the correct adapter plate, then mounting the new sight. Kit Includes: 4 Plates 01 - Fits Eotech, Docter, Insight & Meopta Optics 02 - Fits Trijicon RMR 03 - Fits C-More Optics 04 - Leupold Delta Point Optics 4 Mounting Screws Wrench Models Fit: G17 Gen5 MOS G19 Gen5 MOS G34 Gen5 MOS G45 Gen5 MOS Manufacturer: Glock