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The SIG Romeo2 footprint
Page last updated . Data compiled September 2026 by Andrew Terrebonne.
Romeo2 enclosed pattern
- Layout
- Proprietary; SIG PRO slide cut or a ROMEO2 adapter plate
- Screws
- M4 × 0.7
- Driver
- T10
- Torque
- 28 in-lb
- Pattern
- proprietary
Screws and torque from SIG Sauer, ROMEO2 operator's manual (REV04) ↗. Checked against it September 30, 2026.
What to knowSIG's ROMEO2 manual says it mounts directly on SIG PRO-cut slides and on other pistols through adapter plates, which are sold separately.
What uses the SIG Romeo2 footprint?
1 optic uses it, 10 pistols are cut for it and 2 plates provide it. Screws M4 × 0.7; torque 28 in-lb. The lists below name each optic, pistol and plate.
Optics using this footprint
Pistols that mount it with no adapter
- SIG Sauer P320 X-Carry
- SIG Sauer P320 XCompact
- SIG Sauer P320 XFive Legion
- SIG Sauer P320 XTen
- SIG Sauer P320 AXG Legion / AXG Pro
- SIG Sauer P320 Spectre Comp
- SIG Sauer P320-M17 / M18
- Springfield Armory Echelon
- Springfield Armory Echelon 4.0C
- Springfield Armory Echelon Compact 4.5C
Plates that provide this footprint
| Slide interface | Plate | Source |
|---|---|---|
| GLOCK MOS — standard & full size | ROMEO2 GLOCK MOS adapter plate (SOR2M102) | SIG Sauer |
| S&W M&P C.O.R.E. / Optics Ready | C.O.R.E. Plate 6 (DPP family) | S&W factory ↗ |
Check a pairing
The fit checker tells you whether a specific optic and pistol go together, and what it costs to mount.
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