Footprints/Mounting Standards on Red Dot Sights

Red Dot Sights

Introduction

With every passing year, more red dot sights are available on the market. There have never been as many optics manufacturers as there are now, which means that there have never been as many different optical devices as there are now.

Red Dot Sights

Red Dot Sights

Red dot sights have been steadily gaining in popularity – for this reason, they can be found in the offer of most manufacturers of optics around the world. Even companies such as Kahles and Leica, who haven’t manufactured red dot sights before, have recently launched their own versions.

In this article, the most common footprints/mounting standards used on red dot sights are listed. Each standard is described and an image of it is added. At the end of each section, red dot sights that use the footprint discussed are listed.

 

Docter/Noblex standard

This is one of the most widely used footprints in the field of red dot sights. It has two holes for screws and four sockets in which the pins on the mount/adapter fit, one in each corner. There is a wide range of mounts for this footprint on the market, which is one of the main reasons why it is used by so many manufacturers. Docter/Noblex standard is simple and reliable.

Red dot sights that share this footprint:

* These red dot sights have a Docter/Noblex footprint, but the adapter supplied with them has wider threaded sockets than adapters suited for a Docter/Noblex footprint. Consequently, thicker screws are enclosed. You can mount these red dots on an adapter designed specifically for the Docter/Noblex footprint, but you will need not be able to use the screws supplied with them – thinner screws are needed.

Docter, Noblex footprint

Docter, Noblex footprint on Noblex Sight II+

Docter, Noblex footprint

Docter, Noblex footprint on Leica Tempus

Docter Sight footprint

Docter Sight footprint

Note: distances between holes (sockets) are measured from and to the center of the hole (socket).

Important notes

Meopta Meosight III uses a footprint that is very similar to the one used by Docter. The four sockets, one in each corner, are in the exact same places. The holes for the screws, however, are not. This is why Meopta Meosight III cannot be mounted on every adapter designed for the Docter/Noblex footprint. Several adapters are designed so that both Docter/Noblex footprint sights and Meopta Meosight III can be mounted on them (see the image below).

Meopta Meosight III (above) and Docter Sight C (below) (source: Christian S.)

Meopta Meosight III (above) and Docter Sight C (below) (source: Christian S.)

Meopta Meosight III (above) and Docter Sight C (below) (source: Christian S.)

Meopta Meosight III (above) and Docter Sight C (below) (source: Christian S.)

Various adapters for the Docter/Noblex footprint (for different pistols) (source: Christian S.)

Various adapters for the Docter/Noblex footprint (for different pistols) (source: Christian S.)

 

Aimpoint Micro standard

Aimpoint is the first company to have used this standard on their Micro small tube sights. Today, other manufacturers of this type of sights use it as well. The surface of the footprint is slightly lifted in the middle – on each side of the lifted section, there are two holes for screws. The lifted section is cut in the middle – this is where the recoil stop fits.

Red dot sights that share this footprint:

Aimpoint Micro footprint

Aimpoint Micro footprint

Aimpoint Micro footprint

Aimpoint Micro footprint

Note: distances between holes (sockets) are measured from and to the center of the hole (socket).

Important notes

GPO Spectra uses a footprint that is identical to the one used by Aimpoint Micro. Even though it appears to be the same at first sight, there is a protruding part underneath the illumination knob. Because of it, the adapters designed for an Aimpoint Micro footprint do not fit into place at that side (check the picture below). GPO Spectra uses a unique adapter with narrow side sections.

GPO Spectra and its footprint (right) next to Aimpoint Micro H-2 and its footprint (left)

GPO Spectra and its footprint (right) next to Aimpoint Micro H-2 and its footprint (left)

An adapter designed for GPO Spectra's footprint (right) next to the adapter designed for Aimpoint Micro's footprint (left)

An adapter designed for GPO Spectra’s footprint (right) next to the adapter designed for Aimpoint Micro’s footprint (left)

An adapter designed for GPO Spectra's footprint

An adapter designed for GPO Spectra’s footprint

GPO Spectra footprint

GPO Spectra footprint

C-more standard

This is a standard found on C-more’s popular red dot sights, RTS and STS. Some other manufacturers also use it because of its simplicity and reliability. The footprint has two holes for screws and two sockets in which the pins on the mount/adapter fit.

Red dot sights that share this footprint:

C-more footprint

C-more footprint

C-more footprint

C-more footprint

Note: distances between holes (sockets) are measured from and to the center of the hole (socket).

Shield standard

Shield sights are incredibly compact, which is why Shield had to come up with a footprint of their own. It is designed similarly to the Noblex/Docter footprint (there are two holes for the screws and four sockets in which the notches on the mount/adapter fit, one in each corner). The sockets, however, are a little bit wider and closer one to another.

Red dot sights that share this footprint:

Shield footprint

Shield footprint

Docter, Noblex footprint (top) and Shield footprint (bottom)

Docter, Noblex footprint (top) and Shield footprint (bottom)

Shield Sight footprint

Shield Sight footprint

Note: distances between holes (sockets) are measured from and to the center of the hole (socket).

 ‘Trijicon RMR’ standard

This footprint has two holes for screws and two sockets in which the pins on the mount/adapter fit – these are in the front, in each corner. Even though the sockets are in the front only, the footprint is somewhat reminiscent of the Docter/Noblex one. Note, however, that the sockets in the corners are farther apart on the Trijicon footprint and bigger in diameter.

Red dot sights that share this footprint:

Trijicon RMR footprint

Trijicon RMR footprint

Trijicon RMR footprint

Trijicon RMR footprint

Note: distances between holes (sockets) are measured from and to the center of the hole (socket).

There are many other, unique footprints on the market. Sig Sauer’s Romeo 1, for example, has a footprint suitable for mounting on certain Sig Sauer pistols – you will need a special adapter if you wish to mount it elsewhere. Steiner uses a different approach for their MRS – there are only two narrow notches in the front, while the holes for the screws are located at the rear of the sight, on both sides, left and right.

Red dot sights that have a unique footprint

Sig Sauer Romeo 1 Footprint

Sig Sauer Romeo 1 Footprint

Steiner MRS footprint

Steiner MRS footprint

Vector Optics Centurion 1x30 Footprint

Vector Optics Centurion 1×30 Footprint

Holosun Paralow HS403 A footprint

Holosun Paralow HS403 A footprint

Aimpoint ACRO footprint

Aimpoint ACRO footprint

Aimpoint Acro footprint

Aimpoint Acro footprint

Note: distances between holes (sockets) are measured from and to the center of the hole (socket).

This article will be constantly updated in the future. With it, we wish to create a collection of useful data that will be of great help to users/potential buyers of red dot sights and those who are looking for a specific mount/adapter for their red dot sight. If you have a compact reflex or small tube sight that isn’t listed in this article, please be so kind as to send a picture of the sight and its footprint to andraz.gradisnik@optics-trade.comhelp us expand our database. We greatly appreciate everyone’s help!

Picture gallery

 

Summary
Footprints on red dot sights
Article Name
Footprints on red dot sights
Description
In this article, the most common footprints/mounting standards used on red dot sights are listed. Each standard is described and an image of it is added.
Author
Optics Info
Optics Info
Optics Info

14 thoughts on “Footprints/Mounting Standards on Red Dot Sights”

  1. Mounted the Holosun 507c on G45 MOS. Perfect fit with zero play and 6 lbs of tork using Blue Loktite. EDC weapon and must train on presentations but have used the Venom for a few years without issue. Right handed but blind in right eye and left eye now not able to focus on FSP. Put off the red dot fad until last year. Not a fad and much easier and faster than irons. Always keep irons on weapon as backup. Train as mush as possible at dot acquisition from your EDC holster.

  2. Just receive my canik elite subcompact with optic ready . I was interested on getting a red dot optic but dont know which one I should go with. I know I want to try and stay around the 200 dollars range so any help would be appreciated. Thank you

Leave a Reply

Your email address will not be published. Required fields are marked *