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The 1911 has been around long enough that everyone has an opinion on it. Alpha Foxtrot took the platform seriously and updated it where it mattered most: double-stack capacity, modern optics mounting, and a compensated barrel that actually tames 9mm muzzle rise in a meaningful way. The Romulus is the result, and this 4.25-inch compensated version with the MOS adapter slide is one of the more feature-complete configurations in the lineup.
The frame and slide are both machined from SUS416 stainless steel and finished in DLC Black, which is about as tough a surface treatment as you can put on a pistol. DLC is harder than standard nitride or cerakote and holds up well to holster wear and general hard use. The 4.25-inch bull barrel has a pressed compensator and a 1:10 right-hand twist with 6-groove button rifling. That compensator vents muzzle gas upward to reduce rise on follow-up shots, something you'll notice right away compared to a standard unported setup.
The MOS adapter cut on the slide gives you broad compatibility with popular red dot footprints. This specific version includes adapter plates for both the Trijicon RMR and Holosun footprints, so you are not locked into one optic brand. Night Fision sights come installed for backup aiming and low-light use. The skeletonized trigger is set to approximately 3.5 pounds from the factory, which is crisp and consistent for a hammer-fired single-action setup.
Ergonomics are handled well across the board. The injected polymer grip module pairs with a flared magwell for fast, positive reloads, and the extended beavertail keeps your grip high without worrying about hammer bite. An extended slide release, ambidextrous thumb safety, and a bobbed hammer round out the controls. There is also a Picatinny accessory rail on the frame for a weapon light or laser if you want to run one.
This version ships with two 10-round magazines, making it a good fit for shooters in capacity-restricted areas or those who simply prefer the 10-round double-stack form factor for a more manageable grip profile. The Romulus is built in the USA and uses standard 1911/2011 pattern components, which keeps the aftermarket wide open for further customization down the road.
This version uses an MOS adapter cut rather than a direct footprint cut, which gives it broader compatibility. The box includes adapter plates for the Trijicon RMR and Holosun footprints, covering two of the most popular red dot standards. If you want to run an optic with a different footprint, you would need to source a compatible plate separately.
The 4.25-inch barrel uses a pressed compensator that vents muzzle gas upward to push the muzzle down during the firing cycle. In practical terms, this reduces muzzle rise and helps you get back on target faster for follow-up shots. With 9mm it is a real difference you can feel, especially during any kind of fast or competition-style shooting.
The Romulus uses a double-stack grip module designed around the 1911/2011 magazine pattern, which means it is compatible with standard 2011-style double-stack magazines. This specific SKU ships with two 10-round magazines. Alpha Foxtrot offers the Romulus in configurations that accept higher-capacity magazines, so if you want to run 17 or 20-round mags you would want to look at those variants instead.
Night Fision sights come installed from the factory on this model, so there is nothing extra to purchase or swap out to have a functional low-light aiming solution. They serve as your co-witness or backup sights when you have a red dot mounted as well.
Yes, Alpha Foxtrot manufactures the Romulus in the United States. The pistol is also built on a platform that is compatible with standard 1911/2011 components, which is helpful if you ever want to swap parts or take it to a local gunsmith for work.
The Romulus uses a polymer grip module rather than traditional wood or G10 grip panels, which is part of how Alpha Foxtrot achieves the double-stack layout without a massive frame. The grip features an extended beavertail, flared magwell, and a bobbed hammer, all of which contribute to a high and secure grip. Most people coming from a traditional single-stack 1911 will find it noticeably wider but still very 1911-like in feel and trigger behavior.
| UPC | 810100536121 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | AA39X1CIF-XDBK10 |
| Barrel Length | 4.25" |
| Caliber/Gauge | 9mm |
| Capacity | 10 + 1 |
| Safety | Thumb |
| Shipping Weight | 5.031 |
| Slide Description | Optic Ready/Serrated |
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