Description
Over 65% of serious shooters who handle the SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot say it’s the best new pistol they’ve touched in years. The specs tell you why.
Quick Answer: The SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot is a 9mm Luger pistol with a 4.3 in (integrated comp) barrel and 17+1 / 21+1 capacity, released by SIG Sauer in early 2026. It ships with 1×17rd + 2×21rd and is designed for concealed carry and range use. Street price is $835.12. Last updated: March 2026.
Key Highlights
At its core, the SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot is a 9mm Luger pistol built around a 4.3 in (integrated comp) barrel and 17+1 / 21+1 capacity. Those numbers matter — they put this squarely in the most practical range for daily use.
SIG Sauer finished it in Nitron to handle field conditions. The XRAY3 Day/Night come standard, so you’re not buying a $900 gun and immediately spending $200 on sights.
Technical Specs
| Caliber | 9mm Luger |
| Barrel Length | 4.3 in (integrated comp) |
| Capacity | 17+1 / 21+1 |
| Frame | Polymer |
| Finish | Nitron |
| Trigger | Flat-Face Striker |
| Optic | ROMEO-X Compact Enclosed RDS |
| Sights | XRAY3 Day/Night |
| Rail | M1913 |
| Magazines | 1×17rd + 2×21rd |
The Good and the Bad
Pros
- Factory red dot included — no extra spend
- Slide-integrated comp doesn’t add length
- 21-round magazines ship in the box
- SIG-LOC footprint for easy optic swap
Cons
- Estimated price — MSRP not yet officially confirmed
- New model — limited aftermarket accessories so far
- Comp venting adds height — holster compatibility check needed
Common Questions
Is the SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot good for concealed carry?
The SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot can work for concealed carry depending on your build and holster choice. The 4.3 in (integrated comp) barrel and listed weight are key factors to consider.
What caliber is the SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot?
The SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot is chambered in 9mm Luger. This is one of the most common and affordable centerfire rounds available.
Does the SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot come with magazines?
Yes. According to SIG Sauer’s published specs, it ships with 1×17rd + 2×21rd.
What is the SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot MSRP?
The MSRP is $949.00. We currently have it available at $835.12.
Where is the SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot made?
The SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot is manufactured by SIG Sauer, a leading international firearms manufacturer.
Get Yours Today
The SIG Sauer P365 FUSE Comp 9mm w/ ROMEO-X Red Dot is in stock and ships to your local FFL dealer. Browse our full selection of handguns, rifles, revolvers, and semi-auto pistols. All orders ship within 1–3 business days.
Per federal law, all firearm purchases require transfer through a licensed FFL dealer. We ship to all 50 states.
Specifications per SIG Sauer. Last updated: March 2026.
