Docter

Docter MRDS stands for Docter Miniature Red Dot Sight – a miniature red dot sight designed for firearms requiring compact and lightweight optics. It also refers to one of the first footprint standards for mounting micro red dot sights. Docter MRDS is not only the name of a specific red dot but also the designation of a mounting standard widely supported by many brands today. Compared to RMR, it offers a lower profile and is more suitable for civilian shooters, while the RMR is more rugged and preferred by military units. Check out our red dot selection here!

Docter footprint (sometimes shortened to "Docter standard")

• Two rear mounting screws and two guide posts in the front for precise alignment.
• Flat and low-profile design, ideal for pistols, shotguns, or piggyback use on rifle scopes.
• Compatible with many manufacturers, having become the de facto European standard for MRDS optics.

Docter (Noblex) red dot manufacturers

• Original manufacturer: Docter Optics GmbH (Germany).
• Currently produced under the Noblex GmbH brand (new models bear the Noblex name).
• Manufactured in Germany, focused on the hunting and professional segment.

Examples of Docter / Noblex red dots

• Docter Sight II plus – classic MRDS model, 3.5 MOA dot, glass optics, automatic brightness control.
• Docter Sight III – improved version with manual brightness adjustment and multiple dot sizes.
• Noblex Sight C – latest generation MRDS with enhanced durability, IPX7 waterproofing, and better optics.

Difference between Docter and RMR footprints

Docter MRDS use cases

• Very popular in the hunting community as well as for sport and defensive pistols.
• Often used in combination with a traditional rifle scope (piggyback mounting on the top tube).
• In airsoft, often used on compact red dots with Docter footprint, such as Holosun 507K, Vector Optics, Vortex Venom, etc.

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