SIG SAUER Romeo-X SIG-Loc Enclosed Pistol-Mounted Red Dot Sight (Black) (Used)
Couldn't load pickup availability
Product highlights
Product highlights
In the box
In the box
Free standard shipping
Free standard shipping
*Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy
Free Local Pickup
Free Local Pickup
Please call for store stock availability. Requests made before 2:30 PM EST can be available for next-day pickup. Learn more
Condition: Used – Like New
Condition Details: Fully functional with no visible wear; original packaging included (may show light handling).
The SIG SAUER ROMEO-X SIG-LOC Pistol-Mounted Circle Red Dot represents the next evolution in handgun optics, built around the SIG-LOC (Leverage Optimized Connection) system originally developed for the MIL-SPEC ROMEO-M17. Designed for exceptional strength, precision, and reliability, the ROMEO-X delivers professional-grade performance for both civilian and duty use.
SIG-LOC Mounting System
SIG-LOC introduces an innovative low-profile mounting footprint that creates five total points of contact between the optic and slide. This design eliminates zero shift caused by recoil and impact, providing one of the strongest and most stable optic-to-slide connections available.
Reduced Parallax & Clear Sight Picture
The bottom-mounted SIG-LOC architecture allows for a longer focal length, dramatically reducing parallax and reticle distortion. Combined with a distortion-free aspherical glass lens, this results in an ultra-crisp, forgiving sight picture that enhances accuracy and target acquisition.
Rugged, Duty-Ready Construction
Housed in a durable 7075 aluminum body, the ROMEO-X features a fully enclosed and sealed optical system designed to withstand harsh recoil, impacts, and environmental conditions while maintaining consistent performance.
Efficient Illumination & Long Battery Life
The optic includes MOTAC (Motion Activated Illumination), automatically powering on with movement and shutting off when idle to conserve energy. A convenient side-load battery tray supports up to 20,000 hours of runtime and allows battery replacement without removing the optic or losing zero.
Optimized for Co-Witnessing
With the industry’s lowest deck height, the ROMEO-X supports standard-height iron sight co-witnessing. It offers 15 illumination settings, including three dedicated night-vision modes, for adaptability across lighting conditions.
Built in the USA
Assembled in the USA and fully backed by SIG SAUER’s Infinite Guarantee, the ROMEO-X SIG-LOC is engineered to meet the demands of the most discerning shooters.
SIG SAUER Romeo-X SIG-LOC Compact Pistol-Mounted Circle Red Dot Sight (Black)
Overview
| Compact, enclosed-emitter pistol red dot designed for duty, concealed carry, and competition use | |
| Durable aluminum housing with SIG-LOC mounting system for secure, repeatable zero | |
| Integrated MOTAC (Motion Activated Illumination) for extended battery life and instant readiness |
Optical Performance
| Magnification | 1x (true reflex sight for rapid target acquisition) |
| Objective lens diameter | 24 mm |
| Circle-dot reticle optimized for fast sight picture and precision aiming | |
| Enclosed emitter design protects against dust, debris, and moisture |
Illumination & Controls
| Illumination settings | 15 total (12 daylight + 3 night vision compatible) |
| MOTAC automatically powers the optic on with motion and off when idle | |
| Manual brightness adjustment for changing lighting conditions |
Adjustment Range
| Total elevation travel | 80 MOA |
| Total windage travel | 80 MOA |
| Precise, repeatable adjustments for reliable zeroing |
Construction & Durability
| Housing material | Aluminum |
| Waterproof rating | IPX-7 (submersible up to 1 meter) |
| Built to withstand recoil and harsh environmental conditions |
Power
| Battery type | 1 × CR1632 |
| Efficient power management designed for extended operational life |
Dimensions & Weight Class
| Overall length | 1.67 in (42.42 mm) |
| Overall width | 1.20 in (30.48 mm) |
| Height | 0.94 in (23.88 mm) |
| Compact footprint ideal for slide-mounted pistol applications |
Intended Use
| Designed for compact and full-size pistol platforms | |
| Suitable for defensive carry, duty use, and range training | |
| Enclosed design ensures reliability in adverse conditions |
Shipping & Returns
Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.
