Description
The Sig Sauer P226X Legion RXSL 9mm 4.4″ Bull Barrel 3x18rd is a full-size, optic-ready service pistol that delivers match-grade accuracy and a crisp trigger right out of the box. It ships with a factory-mounted ROMEOX Pro SIG-LOC red dot, a 4.4-inch bull barrel with target crown, and the adjustable AX2 trigger system. Built on the proven P226 platform, this Legion-series handgun combines corrosion-resistant Cerakote, G10 grip panels, and XRAY3 day/night sights for low-light confidence. Per Sig Sauer specs, it ships with three 18-round magazines.
| Manufacturer | Sig Sauer |
|---|---|
| Model | P226X Legion RXSL |
| Material | Stainless steel slide, aluminum alloy frame (per manufacturer specs) |
| Compatibility | 9mm Luger |
| Finish | Legion Gray Cerakote |
| Weight | 32.8 oz (unloaded, with optic, per manufacturer specs) |
| Condition | New |
Key Features
- Factory-Mounted ROMEOX Pro SIG-LOC Optic – Ships zeroed and locked to the slide, eliminating the need for aftermarket milling or adapter plates. Why it matters: you get a dedicated red dot system that holds zero under recoil and is ready to shoot immediately.
- 4.4-Inch Match-Grade Bull Barrel with Target Crown – The heavy bull profile and target-crowned muzzle reduce barrel whip and improve consistency shot to shot. Why it matters: tighter groups at distance and better accuracy than standard barrels, especially with defensive or match ammunition.
- AX2 Adjustable Double-Action/Single-Action Trigger – Lets you tune trigger pull weight and overtravel for DA/SA operation. Why it matters: shooters can dial in a lighter SA break for precision work while keeping a heavier DA for carry or duty use.
- XRAY3 Day/Night Sights – Tritium inserts with bright front and rear outlines for low-light acquisition. Why it matters: you have instant sight alignment in darkness or bright sun, with the optic as a backup.
- Legion Gray Cerakote Finish and G10 Grip Panels – The Cerakote resists corrosion and wear, and the textured G10 grips lock your hand in place. Why it matters: the pistol holds up to sweat, rain, and holster wear while keeping your grip consistent under recoil.
Who It’s For
This pistol is built for shooters who need a duty-grade, optic-ready handgun with factory reliability and match accuracy. It fits competitive shooters in USPSA or IDPA Production divisions, law enforcement officers who want a red dot on a proven platform, and serious collectors who appreciate Legion-series upgrades. The DA/SA trigger and bull barrel also appeal to shooters who prefer a heavier, more stable pistol for slow-fire precision work.
Pros / Cons
- Pro: Factory-installed ROMEOX Pro eliminates aftermarket fitting and warranty headaches.
- Pro: AX2 trigger adjustability gives you control over pull weight and reset.
- Pro: Bull barrel and target crown deliver sub-2-inch groups at 25 yards with match ammo.
- Con: The optic is SIG-specific and cannot be swapped to a different footprint without a new slide or adapter plate. If you prefer a different red dot brand, you’ll need to replace the optic or have the slide milled.
Comparison
| Feature | Sig Sauer P226X Legion RXSL | Zev Technologies OZ9 | Agency Arms AOS Glock 17 |
|---|---|---|---|
| Optic System | SIG-LOC (factory) | RMR footprint (aftermarket) | Agency Optic System (interchangeable plates) |
| Trigger | Adjustable DA/SA (AX2) | Flat-faced, single-action only | Factory Glock (upgradable) |
| Barrel | 4.4″ bull barrel, target crown | 4.49″ match barrel, threaded | 4.49″ match barrel, fluted |
| Weight (unloaded) | 32.8 oz | 24.5 oz | 24.9 oz |
| Magazine Capacity | 18+1 | 17+1 | 17+1 |
| Price | $1,829.99 | $1,699.99 | $1,899.99 |
FAQ
Does the ROMEOX Pro optic co-witness with the XRAY3 sights?
Yes, the factory-installed optic sits low enough to allow a lower 1/3 co-witness with the XRAY3 day/night sights. You can use the irons through the window if the dot fails.
Can I remove the ROMEOX Pro and mount a different optic?
The slide uses the SIG-LOC footprint, which is proprietary to Sig Sauer. You can remove the optic, but mounting a different brand (RMR, DeltaPoint Pro, etc.) requires either an adapter plate or milling the slide for a different footprint. Sig does not sell adapter plates for other footprints.
What is the trigger pull weight range on the AX2 trigger?
Per Sig Sauer specs, the AX2 trigger is adjustable from approximately 4.0 to 6.0 pounds in single-action mode, and 8.0 to 10.0 pounds in double-action. You can adjust overtravel and pretravel via the two set screws on the trigger shoe.
Does this pistol come with a threaded barrel for suppressors?
No, the P226X Legion RXSL ships with a standard 4.4-inch bull barrel with a target crown, not a threaded barrel. If you need suppressor compatibility, look at the P226X Legion RX model with a threaded barrel.
How many magazines are included?
This SKU includes three 18-round magazines, each with a steel body and polymer basepad. That gives you 54 rounds on hand out of the box.
Why Buy from Us
✔ Nationwide delivery (all 50 states) – we ship to your FFL or home where allowed.
✔ Ships 1-2 business days from our warehouse.
✔ 30-day returns on new, unfired firearms – no restocking fee.
✔ Secure checkout with encrypted payment processing.
Semi Auto Handguns | Sig Sauer Handguns | P226 Accessories
Last updated: April 2026
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