If you wondered which red dots will fit the new Glock gen.6 models, this article is for you. I explain the full compatibility of red dots for the new Glocks.
Why is it important? Because with the release of the Glock Gen 6, the mounting system for red dots has went through a significant redesign.

The Gen 6 Mounting System
The Glock Gen 6 has moved away from the older MOS system found on Gen 5 models (that system used these adapter plates).
The new Glock gen.6 models (G17, G19, G45 and others) now come with new mechanism of mounting red dots. To install red dot to the new Glocks, you will use one of the three specific adapter plates that come together with the gun.
These plates are numbered #2, #3, and #4. To keep things simple, I will reffer to each of them by the number it has printed on it (that is plate #2, plate #3 and plate #4).
Applicable Models
- Will Fit: G17 Gen 6, G19 Gen 6, G45 Gen 6, other Gen 6 full size models
- Will Not Fit: G43X MOS, G48 MOS (These maintain the Slimline RMSc footprint - find red dots compatible with G43X MOS & G48 MOS here)
Which red dots will fit to the included adapter plates
Plate #2: RMR Footprint (Full-Size Optics)
Plate #2 is designed for the Trijicon RMR footprint. That does not mean that you can install only Trijicon RMR to it. It means that you can install any red dot, that uses the same footprint (which there are many).
These optics are typically wider than the slide but offer a larger window and robust battery life.
Most popular optics compatible with plate #2 [RMR footprint]:
- Osight C: Very good price / quality ratio. Red dot with small dimensions and multi reticle system: choose from 3 MOA dot, 32 MOA circle or both. Window size 19.5 x 24.1 mm.
- Holosun 507Comp: Top of the Holosun productoin. Multi reticle system with 6 different aiming pictures. Window size 22.1 x 27.9 mm.
- Vector Optics Frenzy 1x22x26 MOS MRS: Budget red dot with very good quality. 3 reticle options: 3 MOA dot, 34 MOA circle, or circle with dot. Window size 22 x 26 mm.
In this category you can find also other red dots that share the same footprint, and will work with the plate #2: red dots with Trijicon RMR footprint.

___________
Plate #3: C-More RTS Footprint (Sport Shooting)
Plate #3 is a dedicated to the C-More RTS footprint. There are not so many optics for this footprint, but since C-More is considered the top optic for sport shooting, you will find this plate very handy.
Most popular optics compatible with plate #3 [RTS footprint]:
- C-more RTS3B: Number one choice of professional competition shooters. Very clear picture, available with 3, 6 and 9 MOA dot. Huge window size 24.9 x 29.7 mm.
-
Toni System ZV: Very popular optic from Italian manufacturer of sport shooting accessories, Toni System. Available in 3, 6 and 9 MOA variant. Very big window size: 24.4 x 33.3 mm.
You can also choose from any other optics that use this footprint.
In this category you will find all red dots that will work with the C-More RTS footprint [plate #3]: red dots with C-More RTS footprint.

_________
Plate #4: DPP & RMSc Footprint (Compact/Micro)
Plate #4 is a hybrid design intended for Delta Point Pro (DPP) and RMSc footprints.
*Please note that red dots that use Holosun K-series footprint will not work with this plate.
Most popular optics compatible with plate #4 [RMSc & DPP footprint]:
- Osight SE [red]: Very compact, yet robustly made enclosed red dot. Multi reticle system (2 MOA dot, 32 MOA circle, combination of both). Window size 14 x 21 mm.
- Vector Optics Frenzy-S 1x17x24 MOS Multi Reticle: Very popular and budget red dot sight proven by time. 3 reticle options (dot, circle, combination) and window size 17 x 24 mm.
- Osight K: Very compact yet versatile optic with very good price / quality ratio. Available with 6 MOA, ideal for fast target acquisition and short distance shooting. Window size 14 x 21 mm.
You can also choose from any red dots in these two categories, they will be compatible with this Gen 6 adapter plate #4:
