The Docter footprint
The Docter is a pistol optic footprint that mounts with 2 screws (screw_through). 6 red dot optics use the Docter footprint, including the Burris FastFire 3, Burris FastFire 4 and Crimson Trace CTS-1250 Compact Open Reflex Sight. It also mounts on 55 more pistols through a factory plate.
Docter / Noblex pattern (historically Doctersight). Two screws and four corner sockets to accept recoil pins. Older European standard, predates RMR's industry dominance. Used by Burris FastFire 2/3/4, Vortex Viper, Vortex Venom, Hex Dragonfly, Primary Arms SLx RS-10, Sig Sauer Romeo1 (original), Meopta Meosight, Viridian RFX25, and several other mid-2010s reflex sights.
Footprint specifications are compiled from manufacturer drawings and optic spec sheets.
Optics with the Docter footprint · 6
- Burris FastFire 3 $239.99 OpticsPlanetShop on Amazon
- Burris FastFire 4 $279.99 OpticsPlanetShop on Amazon
- Crimson Trace CTS-1250 Compact Open Reflex Sight Shop at OpticsPlanetShop on Amazon
- Primary Arms SLx RS-10 $209.99 OpticsPlanetShop on Amazon
- Vortex Venom Shop at OpticsPlanetShop on Amazon
- Vortex Viper $199.99 OpticsPlanetShop on Amazon
No optics match your filter.
Mount it with a plate
Beretta APX A1 · 10 pistols
Via the OEM/Aftermarket Beretta 90-Series / APX A1 optic plate-kit system optic plate (Docter) plate. beretta.com
Show the 10 pistols
Canik METE · 7 pistols
Via the OEM/Aftermarket Canik METE/TP9 plate system optic plate (Docter) plate. outerimpact.com
Show the 7 pistols
Ruger factory plate · 1 pistol
Via the OEM/Aftermarket Ruger factory optic adapter plate system optic plate (Docter) plate. outerimpact.com
Show the 1 pistol
SIG P320 X-series · 16 pistols
Via the OEM/Aftermarket SIG P320 X-series plate system optic plate (Docter) plate. outerimpact.com
Show the 16 pistols
- Sig Sauer P320 AXG Legion
- Sig Sauer P320 AXG Pro
- Sig Sauer P320 Compact
- Sig Sauer P320 Full Size
- Sig Sauer P320 M17
- Sig Sauer P320 M18
- Sig Sauer P320 SXG Reserve
- Sig Sauer P320 Spectre Comp
- Sig Sauer P320 X-Five Legion
- Sig Sauer P320 X-Five SXG
- Sig Sauer P320 XCarry Legion
- Sig Sauer P320 XCarry Spectre
- Sig Sauer P320 XCompact
- Sig Sauer P320 XCompact Spectre
- Sig Sauer P320 XFull
- Sig Sauer P320-XTEN
Springfield AOS · 1 pistol
Via the OEM/Aftermarket Springfield AOS optic plate (Docter) plate. springfield-armory.com
Show the 1 pistol
Springfield Echelon VIS · 4 pistols
Via the OEM/Aftermarket Springfield Echelon Variable Interface System (VIS) optic plate (Docter) plate. store.springfield-armory.com
Show the 4 pistols
Springfield XD OSP · 1 pistol
Via the OEM/Aftermarket Springfield XD OSP optic plate (Docter) plate. store.springfield-armory.com
Show the 1 pistol
Taurus TORO · 4 pistols
Via the OEM/Aftermarket Taurus TORO multi-plate system optic plate (Docter) plate. shoptaurus.com
Show the 4 pistols
Walther PDP 1.0 · 1 pistol
Via the Walther PDP Gen 1 Optic Plate (Docter) plate. optics-spot.com
Show the 1 pistol
Walther PDP 2.0 · 10 pistols
Via the Walther PDP Gen 2 Optic Plate (Docter) plate. optics-spot.com
Show the 10 pistols
- Walther PDP (Gen 2 Optic-Cut)
- Walther PDP F-Series (Gen 2 Optic-Cut)
- Walther PDP F-Series Standard 3.5"
- Walther PDP Match Full Size 5"
- Walther PDP Pro SD Compact 4.6"
- Walther PDP Pro SD Full Size 5.1"
- Walther PDP Standard Compact 5"
- Walther PDP Steel Frame (Gen 2 Optic-Cut)
- Walther PDP Steel Frame Compact 4"
- Walther PDP Steel Frame Match Full Size 5"
Frequently asked
What optics use the Docter footprint?
6 optics use the Docter footprint, including the Burris FastFire 3, Burris FastFire 4, Crimson Trace CTS-1250 Compact Open Reflex Sight and Primary Arms SLx RS-10.
How is the Docter footprint mounted?
The Docter footprint uses 2 screws and a screw through mounting style. It also incorporates 4 recoil lugs to resist rearward movement under firing.
Is the Docter footprint part of a larger family?
The Docter footprint is part of the Docter / Noblex family. Optics and adapter plates within the same family often share compatible mounting dimensions, which can expand which pistols and adapter solutions are available.
Which pistols take the Docter with a plate?
55 pistols reach the Docter through a factory plate, using the Beretta APX A1, Canik METE, Ruger factory plate, SIG P320 X-series and 6 more plate systems.