Description
The Sig Sauer P226 Extreme Romeo X is the fully equipped version of the XFive Extreme, arriving with the red dot already mounted on the SIG-LOC cut. MAG5 Firearms stocks it with a 5-inch bull barrel, a single-action trigger, an all-steel frame, Hogue Piranha G10 grips and twenty rounds on board.
Why SIG-LOC Mounting Matters
SIG-LOC seats the optic directly to the slide with no adapter plate. Plates are the most common failure point in a pistol optic setup, and removing one removes a source of zero shift and loose screws.
Because the optic on the Sig Sauer P226 Extreme Romeo X was matched to the cut at the factory, there is no footprint research and no discovering afterward that the irons no longer line up.
Bull Barrel and Steel Frame
The bull barrel puts mass forward where it damps rise, and the steel frame adds weight low in the hand. Together they make this pistol track flat enough that the dot barely leaves the target between shots.
With standard-pressure 9mm the Sig Sauer P226 Extreme Romeo X feels close to recoilless, which is the point of building a competition gun out of steel rather than polymer.
Sig Sauer P226 Extreme Romeo X Specifications
| Manufacturer | SIG SAUER |
|---|---|
| Model | P226 XFive Extreme with Optic |
| Part Number | 226X59XTMSAORXSL |
| Caliber | 9mm Luger |
| Capacity | 20+1 Rounds |
| Barrel Length | 5 inches |
| Barrel | Bull Barrel |
| Slide | Black Nitron Stainless, Optic Cut, Serrated |
| Frame | Black Nitron Stainless with Beavertail and Picatinny Rail |
| Grips | Custom Hogue G10 Piranha |
| Optic Included | SIG ROMEO-X, SIG-LOC |
| Action | Single Action Only |
| UPC | 798681723812 |

Single Action and Capacity
There is no double-action first press to manage. Every shot breaks the same short, clean way, which removes the largest inconsistency in shooting a hammer-fired pistol quickly.
Twenty rounds means fewer reloads on a stage and fewer magazine changes during a long practice string, and the magazines are factory units rather than aftermarket extensions.
Sig Sauer P226 Extreme Romeo X Grips and Handling
Custom Hogue G10 Piranha panels are aggressive in the way a competition gun should be. They lock the hand in place under recoil and hold through a long stage in wet or gloved conditions.
A Picatinny rail is present as well, which is unusual on a dedicated competition pistol and makes this one more versatile than a pure race gun.
Availability and Transfer
MAG5 Firearms is a licensed FFL dealer in Pennsylvania. This pistol ships new in the factory case with magazines, the optic installed and documentation, transferred through your local FFL.
P226 magazines are widely available, including higher-capacity versions where local law permits them.
Other Sig Sauer P226 Extreme Romeo X configurations and competition pistols are listed in our handgun catalog. Factory specifications are published by SIG SAUER.
Every Sig Sauer P226 Extreme Romeo X sold by MAG5 Firearms ships new in the factory packaging with the accessories SIG SAUER includes, and transfers to your chosen FFL. The Sig Sauer P226 Extreme Romeo X is a regulated firearm and we verify licensing before any order leaves the shop.






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