Glock 48 MOS adapter plate and Glock 43x MOS adapter plate by Calculated Kinetics are machined here in the USA from 6061 aluminum, then hard anodized black to give you the durability to last a lifetime. All plates come with the hardware, Vibratite, and installation instructions to properly secure any Modified RMSc (407k/507k/EPS Carry). 

We definitely recommend adding the Ameriglo GL453 or GL-880, as the OEM backup iron sights are barely usable. The Ameriglo GL-453 or GL-880s are good for a lower 1/3 co-witness on a Glock G43x/48 MOS and any Holosun 407k/507k/EPS Carry.

FDE/Tan/Brown G43x/G48 MOS- Your gun does not require a plate, and it has M3 screws for the thread pitch, instead of M4! If you have an EPS Carry, please select M3 x 9 mm. If you plan to run a 407K/507K please select M3 X 10MM.

Compatible with Glock MOS Slimline models with the version 1 MOS (RMSc factory cut). Not compatible with 2026 models with the new V2 MOS (HoloK) factory cut.

Different guns cycle at different rates and with different forces. Some screws are thicker than others and hold optics and plates of different weights. We recommend replacing screws every 10,000 rounds to minimize risk and a potential screw failure.