Sig Sauer Romeo Red Dots
Romeo is Sig's red dot line, with sights for carry pistols, full size pistols and rifles. Pistol dots sit in the cut on the slide; rifle dots mount on a Picatinny rail. We stock the RomeoZero, Romeo1Pro, Romeo2 and Romeo-X for pistols and the Romeo5, Romeo-MSR, Romeo7 and Romeo8T for rifles.Sig's red dots for pistols and rifles, from the small RomeoZero to the big-window Romeo8T.
Prices from $24.51 to $3,989.99, as of Nov 13, 2026.
Pick your Romeo
Every Romeo line we list, with the count in stock and the lowest price for each.
RomeoZero
Romeo1
Romeo2
Romeo3
Romeo4
Romeo5
Romeo7
Romeo8
Romeo9T
Romeo-X
Romeo-MSR
Romeo-M17
Romeo-RS
Romeo-MDC99Romeo items in stockShop all All Sig Romeo products
99 in stock. Sold out listings stay up, after the ones you can buy today.
Compare Romeo models
The most listed size for each model in stock.
As of Nov 13, 2026
Compare Romeo models
The most listed size for each model in stock.
| Model | Size / grip | Type | In stock | From | Shop |
|---|---|---|---|---|---|
| RomeoZero | Red Dot Sights | 2 | $24.51 | Shop | |
| Romeo1 | Red Dot Sights | 8 | $44.76 | Shop | |
| Romeo2 | Red Dot Sights | 7 | $29.99 | Shop | |
| Romeo3 | Optic Mounts & Rings | 2 | $69.99 | Shop | |
| Romeo4 | Red Dot Sights | 5 | $529.99 | Shop | |
| Romeo5 | Red Dot Sights | 9 | $119.16 | Shop | |
| Romeo7 | Red Dot Sights | 1 | $199.99 | Shop | |
| Romeo8 | Red Dot Sights | 10 | $699.99 | Shop | |
| Romeo9T | Red Dot Sights | 2 | $3,989.99 | Shop | |
| Romeo-X | Red Dot Sights | 33 | $308.21 | Shop | |
| Romeo-MSR | Red Dot Sights | 6 | $100.54 | Shop | |
| Romeo-M17 | Red Dot Sights | 1 | $699.99 | Shop | |
| Romeo-RS | Red Dot Sights | 11 | $149.99 | Shop | |
| Romeo-MDC | Red Dot Sights | 2 | $169.10 | Shop |
Source: every value is taken from our in-stock listings for each model.
Pistol red dots
For a pistol, start with the cut on your slide. The RomeoZero is a small open sight made for micro carry pistols like the P365X and P365XL. The Romeo1Pro and Romeo2 have larger 30mm windows for full size pistols, and the Romeo-X comes in open and enclosed versions in compact and full size (Pro) footprints. Our listings name the footprint or the pistols each sight fits, and pistol optic plates adapt one cut to another.
Rifle red dots
Rifle dots mount on a Picatinny rail. The Romeo5 and Romeo-MSR are compact 1x20mm sights with 2 MOA dots, the Romeo7 is a full size 1x30mm sight that runs on an AA battery in our listings, and the Romeo8T is the big-window model with a 38mm lens (40mm on the AMR versions) and circle dot reticles. The Romeo5X adds motion activated power, and the Romeo5XDR runs on a AAA battery.
Romeo-X: open or enclosed
An open sight has an exposed emitter, so rain, dust or lint can block the dot. An enclosed sight seals the emitter behind a front window, which keeps debris out but adds a little size. The Romeo-X comes both ways, in red and green dot versions, sized for carry pistols (Compact) and full size slides (Pro). Some Sig pistols are sold with a Romeo-X, and their titles say so. We have 33 Romeo-X listings in stock.
Magnifiers and combos
A magnifier sits behind a rifle dot for longer shots, and most mount on a base that flips to the side when you do not need it. Several of our listings pair a Romeo with a Juliet magnifier: the Romeo5 with a Juliet3-Micro, the Romeo-MSR with a Juliet3 or Juliet5, and the Romeo8T with a Juliet3T. See every Juliet magnifier and our red dot magnifiers.
Battery life and MOTAC
Many Romeo sights use MOTAC, Sig's motion activated illumination: the dot shuts off when the gun sits still and turns back on when it moves, which saves battery. Our Romeo4T listings add a solar panel, and the Romeo7 runs on a single AA battery. Dot sizes in our listings run from 1 to 8 MOA.
More Sig Sauer series
Sig Romeo FAQ
Which Romeo fits my pistol?
It depends on the cut on your slide, called the footprint. Each listing names the footprint or the pistols it fits: one of our Romeo-X Compact listings, for example, names the P365, P320, P226 and P229. The RomeoZero is made for micro carry pistols like the P365X and P365XL. Pistol optic plates adapt one cut to another.
What is the difference between an open and an enclosed red dot?
An open sight has an exposed emitter, so rain, dust or lint can block the dot. An enclosed sight seals the emitter behind a front window, which keeps debris out but adds a little size. Our Romeo-X listings come both ways.
What does MOA mean on a red dot?
MOA (minute of angle) is the size of the dot. A 2 MOA dot covers about 2 inches at 100 yards, which suits precise rifle shots. A 6 MOA dot is bigger and quicker to find on a pistol. Our Romeo listings run from 1 to 8 MOA.
What is MOTAC?
MOTAC is Sig's motion activated illumination. The sight turns the dot off when it sits still and back on when it moves, which saves battery. Many Romeo listings mention it.
Which Romeo goes on an AR-15?
The rifle dots. The Romeo5 and Romeo-MSR are compact 1x20mm sights on Picatinny mounts, the Romeo7 is a full size 1x30mm sight that runs on an AA battery in our listings, and the Romeo8T has a larger 38mm window.
Can I use a magnifier with a Romeo?
Yes. Rifle dots like the Romeo5 and Romeo-MSR pair with Sig's Juliet magnifiers, and several of our listings are Romeo and Juliet combos. See Juliet magnifiers.
Do you carry green dot Romeo sights?
Yes. Several Romeo-X and Romeo-MSR listings have a green dot, which some shooters find easier to see in bright light. The color is in each title.
Do Romeo sights ship to my house?
Yes. Red dots, magnifiers and mounting kits ship to your door. Only the firearm itself has to go through a licensed dealer.