SIG Sauer Romeo1 Pro vs Vortex Defender ST: specs compared
Updated 05 September 2026.
3
specs differ
SIG Sauer Romeo1 Pro and Vortex Defender ST differ on 3 specs: make, model, mounts to.
| Spec | SIG Sauer Romeo1 Pro | Vortex Defender ST |
|---|---|---|
| Make | SIG Sauer | Vortex |
| Model | Romeo1 Pro | Defender ST |
| Footprint | Leupold DeltaPoint Pro | Leupold DeltaPoint Pro |
| Optic type | open-emitter reflex | open-emitter reflex |
| Mounts to | a pistol slide, adapter plate or a Picatinny footprint mount | pistol slide cut or an adapter plate |
Questions and answers
How do SIG Sauer Romeo1 Pro and Vortex Defender ST compare?
SIG Sauer Romeo1 Pro and Vortex Defender ST differ on 3 specs: make, model, mounts to.