This collection brings together every red dot adapter we have for HK models: optics ready plates for HK models with a factory optic cut, and red dot mounts for HK models without one. Pick your model above and you see only the plates or mounts that fit it.
Plate or mount: which one does your HK model take
-
Optics Ready HK models have a factory optic cut in the slide, closed with a cover plate. They take an optics ready plate. The plate goes into the cut and connects it to the footprint of your red dot.
-
HK models without an optic cut take a red dot mount. The mount replaces the rear sight in its dovetail. You need no slide milling and no permanent modifications.
A mount does not fit an Optics Ready model, and a plate does not fit a model without the cut. Choose your exact model, including the Optics Ready (OR) or MOS part of its name.
Optics Ready HK models
We have optic plates for the HK VP9 OR and SFP9 OR. Both pistols share one factory optic cut, so the same plates fit both. The plate goes into the optic cut and connects it to the footprint of your red dot. You also find a red dot that fits the cut directly.
Footprints
For the VP9 OR and SFP9 OR, plates exist for these footprints:
- Single footprints: Trijicon RMR, Shield RMSc, Leupold DPP, Docter and Holosun 509T.
- Toni System type A: Shield RMSc, Leupold DPP and Docter.
- Toni System type B: Trijicon RMR and C-More RTS.
- EGW type S: Shield RMSc and Leupold DPP.
The type letters differ between makers. Always read the footprint list in the brackets.
Which red dot for which footprint
Which red dots go on which footprint, with examples from our range:
One footprint or several
The Toni System type A plate takes three footprints and type B two. They are useful if you may change your red dot later. A plate for one footprint, for example from 2BME or EGW, fits only that footprint.
Makers
2BME in Poland machines most plates for the VP9 and SFP9 from aircraft aluminium. EGW in the USA, Toni System in Italy and Shield Sights in the United Kingdom also make plates in aluminium.
Direct-fit red dot
The Holosun SCS VP9 fits the VP9 OR and SFP9 OR cut directly, without a plate. It has a green 2 MOA dot with a 32 MOA circle and a solar charging system.
Co-witness
With a red dot on the plate, the factory sights are usually hidden below the window. Co-witness sights for the VP9 OR and SFP9 OR are tall enough to be seen through the red dot. See Sights for HK models.
All optic plates at a glance
The table lists every product in this page. The middle column gives the footprints, so you can check at once which red dots it takes.
| Plate |
Footprints |
Maker |
| HK [VP9 & SFP9] Optics Ready plate |
Docter footprint, Trijicon RMR footprint, type S [RMSc, DPP footprint] |
EGW |
| HK [VP9 & SFP9] Optics Ready plate |
Docter footprint, Holosun 509T footprint, Leupold DPP footprint, Shield RMSc footprint, Trijicon RMR footprint |
2BME |
| HK [VP9 & SFP9] Optics Ready plate |
Shield RMSc footprint |
Shield Sights |
| HK [VP9 & SFP9] Optics Ready plate |
type A [RMSc, DPP, Docter footprint], type B [RMR & RTS footprint] |
Toni System |
| Holosun SCS VP9 / SFP9 |
- |
Holosun |
Installation
Remove the factory cover plate from the optic cut. Screw the optic plate into its place, then screw the red dot onto the plate. No milling is needed and you can do it yourself. Threadlocker on the screws is recommended.
HK models without an optic cut
We have red dot mounts for HK pistols without a factory optic cut. The mount replaces the rear sight in its dovetail. You need no slide milling and no permanent modifications.
Which mount fits which HK
Footprints for the VP9 family
- Single footprints: Trijicon RMR and Shield RMSc.
- Toni System type A: Shield RMSc, Leupold DPP and Docter.
- Toni System type B: Trijicon RMR and C-More RTS.
- Outer Impact type C: Trijicon RMR, C-More RTS and Docter.
- EGW type S: Shield RMSc, Leupold DPP and Holosun K-series.
Footprints for the USP
For the USP and USP Tactical, mounts exist for the Trijicon RMR, Shield RMSc and Docter footprints. Outer Impact type C and EGW type S add more options.
Which red dot for which footprint
Which red dots go on which footprint, with examples from our range:
-
Trijicon RMR: for example the Holosun 407C, 507C and 508T, Olight Osight and Vector Optics Frenzy-X. See Red dots with Trijicon RMR footprint.
-
Shield RMSc: Shield red dots, the Holosun EPS Core, Olight Osight K, S and SE and Vector Optics Frenzy-S. See Red dots with Shield RMSc footprint.
-
Leupold DPP: for example the Holosun SCS 320, Olight Osight SE DPP and Vortex Defender ST and XL. See Red dots with Leupold DPP footprint.
-
Docter: also called Vortex Venom or Noblex, for example the Vector Optics Frenzy 1x17x24 and Frenzy-X 1x20x28. See Red dots with Docter footprint.
-
C-More RTS: the C-More RTS, the Toni System ZR, ZV and ZX and the Vector Optics Frenzy Plus. See Red dots with C-More RTS footprint.
-
Holosun K-series: the Holosun 407K and 507K, EPS Carry and SCS Carry. See Red dots with Holosun K-series footprint.
HK Mark 23
The Toni System type L mount for the Mark 23 takes five footprints: Trijicon RMR, Shield RMSc, C-More RTS, Leupold DPP and Docter. It is the widest choice of footprints on one mount in this page.
Makers and materials
EGW and Outer Impact in the USA and Toni System in Italy make aluminium mounts. Shield Sights makes polymer and brass mounts.
All red dot mounts at a glance
The table lists every product in this page. The middle column gives the footprints, so you can check at once which red dots it takes.
| Mount |
Footprints |
Maker |
| HK Mark 23 red dot mount |
type L [RMR, RMSc, RTS, DPP, Docter footprint] |
Toni System |
| HK USP & USP Tactical red dot mount universal |
Docter footprint, Trijicon RMR footprint, type S [RMSc, DPP, K-series footprint] |
EGW |
| HK USP & USP Tactical red dot mount universal |
Shield RMSc footprint |
Shield Sights |
| HK USP & USP Tactical red dot mount universal |
type C [RMR, RTS, Docter footprint] |
Outer Impact |
| HK USP Compact red dot mount |
Docter footprint, Trijicon RMR footprint |
EGW |
| HK [VP9, SFP9, VP40, P30, HK45] red dot mount |
Shield RMSc footprint |
Shield Sights |
| HK [VP9, SFP9, VP40, P30, HK45] red dot mount |
Trijicon RMR footprint, type S [RMSc, DPP, K-series footprint] |
EGW |
| HK [VP9, SFP9, VP40, P30, HK45] red dot mount |
type A [RMSc, DPP, Docter footprint], type B [RMR & RTS footprint] |
Toni System |
| HK [VP9, SFP9, VP40, P30, HK45] red dot mount |
type C [RMR, RTS, Docter footprint] |
Outer Impact |
Installation
Drift the rear sight out of the dovetail with a sight pusher or a punch. Push the mount into the same dovetail and fix it. Then screw the red dot onto the mount. No slide milling or permanent modifications are needed. See Installation tools.
Related collections
For iron sights, see Sights for HK models. For the tools you need, see Installation tools. For other brands, see Red dot adapters.
Frequently asked questions
Can I install an optic plate on my VP9 OR or SFP9 OR at home?
Yes. No milling is needed, and you can do it yourself.
- Remove the cover plate from the optic cut.
- Screw the optic plate into the cut.
- Screw the red dot onto the plate.
Put a drop of threadlocker on every screw.
Which red dots will fit my VP9 OR and SFP9 OR?
It depends on the plate you choose. Every plate takes one footprint or a group of footprints. For VP9 OR and SFP9 OR pistols we have plates for the Trijicon RMR, Shield RMSc, Leupold DPP, Docter, C-More RTS and Holosun 509T footprints.
Choose your red dot first and find its footprint in the specifications. Then take the plate with the same footprint.
Do VP9 OR plates fit my SFP9 OR?
Yes. Both pistols have the same optic cut and take the same plates.
Do I need a plate for the Holosun SCS VP9?
No. The SCS VP9 goes straight into the optic cut.
Can I put a red dot on my HK without an optic cut?
Yes. The mount goes into the rear sight dovetail in place of the rear sight. No milling and no permanent changes, so you can put the rear sight back at any time.
Can I install the mount at home?
Yes, if you have a sight pusher or a punch.
- Drift the rear sight out of the dovetail.
- Push the mount into the dovetail and tighten it.
- Screw the red dot onto the mount with a drop of threadlocker on each screw.
You find the tools in Installation tools.
Does the VP9 mount fit my P30?
Yes. One mount family fits the VP9, SFP9, VP40, P30 and HK45.
Does the USP mount fit my USP Compact?
No. The USP Compact has its own mounts.
My VP9 OR is Optics Ready. Will these mounts fit?
No. A pistol with a factory optic cut takes an optic plate, not a mount. See Optics ready plates for HK models.