The SIG Sauer ROMEO8T-AMR is a full-size 1x40 enclosed-emitter rifle red dot built around SIG's Automatic Modified Reticle (AMR) technology — paired with a magnifier, the reticle automatically transitions for magnified use. It runs the Quad Ballistic Circle Dot 2.0 reticle on a large 40mm HDX multi-coated lens.
It delivers 50,000 hours on a CR123 via MOTAC, with a dedicated NV override and a rugged build that's IPX8 waterproof and MIL-810 rated.
How It Compares
Want it bundled with a matched magnifier? See the ROMEO8T-AMR + JULIET3T combo. Browse the SIG ROMEO range, all rifle red dots and enclosed red dots; build via AR-15 optics.
Ideal For
- Modern sporting rifles and carbines
- Duty and tactical use
- Shooters planning to add a magnifier (AMR)
Key Features
- 1x40 enclosed emitter; 40mm HDX lens
- Quad Ballistic Circle Dot 2.0 / AMR auto-reticle
- 50,000h on CR123 (MOTAC); dedicated NV override
- IPX8 waterproof; MIL-810 rated
- M1913 rail interface
Technical Specifications
| Magnification |
1x |
| Objective |
40 mm HDX |
| Reticle |
Quad Ballistic Circle Dot 2.0 / AMR (red) |
| Battery |
CR123 — up to 50,000 h (MOTAC) |
| Durability |
IPX8, MIL-810 |
| Mount |
M1913 rail |
What's Included
- SIG ROMEO8T-AMR red dot sight
- CR123 battery, mounting components, manual
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and SIG's Infinite Guarantee.
Frequently Asked Questions
What is AMR?
Automatic Modified Reticle — with a compatible magnifier engaged, the reticle automatically changes configuration for magnified use.
Is the emitter enclosed?
Yes — a full-size enclosed design for maximum reliability.
Can I add a magnifier?
Yes — or buy the matched ROMEO8T-AMR + JULIET3T combo kit.