Optic Footprints & Mounting Standards
The optic cut, plate system, or rail a gun uses decides which red dots and scopes mount to it. Each standard below has its own page — what it is, the guns that use it, and the optics built for it.
Optic footprints
- Shield RMSc Footprint25 guns · 15 opticsSlim/subcompact cut; Holosun K shares identical holes
- Trijicon RMR Footprint12 guns · 19 opticsShared by Trijicon RMR & Holosun 507C/508T
- Leupold DeltaPoint Pro Footprint6 guns · 10 opticsDPP / Sig Romeo1Pro / Romeo2
- Docter / Noblex Footprint0 guns · 8 opticsShared open-reflex footprint: Docter/Noblex, Vortex Venom/Viper, Burris FastFire, Meopta.
- Holosun K Footprint2 guns · 3 opticsSubcompact; NOT the RMR footprint
- Aimpoint ACRO Footprint0 guns · 5 opticsEnclosed; rail-clamp + recoil lug, 4 screws
Plate systems
- Springfield AOS Plate System14 guns · 0 opticsAgency Optic System: plates for RMR/RMSc/DPP footprints
- Glock MOS Plate System11 guns · 1 opticFull-size MOS plate set 01-04
- Optic-ready Shotgun Plate System7 guns · 0 opticsRMSc-cut + RMR/DPP/Docter plates (e.g. Mossberg 940 Pro)
- Walther PDP Plate System5 guns · 0 opticsPDP ships plates; bridges to RMR/DPP/RMSc-class via adapters
- S&W M&P 2.0 C.O.R.E. Plate System4 guns · 0 opticsShips with interchangeable CORE plates
- CZ P-10 OR Plate System3 guns · 0 opticsP-10 Optics-Ready ships plates for common footprints
- FN 509 Plate System3 guns · 0 optics509 MRD ships a plate set covering common footprints
- Springfield Echelon VIS2 guns · 0 opticsPin-based system; natively fits RMR, DeltaPoint Pro, and RMSc/Shield footprints
- HK VP9 OR Plate System2 guns · 0 opticsHK VP9/SFP9 OR factory plate; bridges RMR/RMSc/DPP/K
- Springfield OSP Plate System2 guns · 0 opticsXD-M Elite OSP plate; bridges RMR/DPP/RMSc