Description
The Alpha Foxtrot Romulus RMSc Threaded is arguably the most flexible gun in the Romulus range. The slide is machined directly for a Shield RMSc footprint optic, and the 4.25 inch bull barrel is threaded and ships with a knurled protector fitted. Polished DLC over a SUS416 stainless frame and slide, ambidextrous controls, accessory rail. Part number AA39X1CMB-PDBK19, UPC 810100533892.
Why this combination is the sensible one
The Alpha Foxtrot Romulus RMSc Threaded sits in a line where Alpha Foxtrot offers four muzzle treatments and only one of them is reversible. Ports are permanent. A pressed compensator is permanent. A plain barrel is plain. Threads are the only option that lets you add a compensator when you want one and take it off when you do not, which makes a reversible compensator pistol the right buy if you are not yet certain what you want the gun to be.
The optic cut follows the same logic in reverse. A threaded 2011 with optic cut like this one has the RMSc pattern milled straight into the slide rather than mounted through an adapter plate. That removes the extra interface and the plate screws that come with it, which is the most common way a pistol optic works loose, and it seats the dot lower for better co-witness.
So with an AF1911 Romulus threaded polished build you get the permanent decision made well, and the reversible decision left open. If that sounds like the way you buy guns, this is the configuration to look at.
What to know before ordering
The direct cut on the Alpha Foxtrot Romulus RMSc Threaded takes RMSc footprint optics only. That covers the Shield RMSc itself, the Holosun 507K and EPS Carry, and a reasonable number of others, but a full size Trijicon RMR will not fit without gunsmithing. If you already own an RMR, buy one of the MOS adapter models instead.
On the threads of the Alpha Foxtrot Romulus RMSc Threaded, decide what is going on the end before you spend. A compensator is an ordinary parts purchase that screws straight on. A suppressor is a federal tax stamp, an ATF approval and a wait, and it has to be legal where you live; MAG5 Firearms does not sell NFA items, so that is a separate transaction with a dealer who does. Ask us to confirm the thread pitch before you order a muzzle device.
Capacity on the Alpha Foxtrot Romulus RMSc Threaded is worth a phone call. Most dealers list this configuration at 19+1 while some show it shipping with 17 and 20 round magazines instead, and the numeric suffix in the part number does not reliably track capacity across this range. We would rather tell you what is in the case than have you infer it.
Alpha Foxtrot Romulus RMSc Threaded specifications
- Caliber: 9mm
- Barrel: 4.25 in bull profile, ramped, threaded with protector fitted
- Frame: SUS416 stainless steel
- Slide: SUS416 stainless steel, milled for RMSc footprint optic
- Finish: polished DLC
- Trigger: single action, approximately 3.5 to 4 lb
- Safety: ambidextrous thumb safety
- Grip: textured polymer module with flared magwell
- Frame rail: accessory rail on dust cover
- Capacity: listed as 19+1, some sources show 17 and 20 round magazines, confirm before ordering
- Part number: AA39X1CMB-PDBK19
- UPC: 810100533892
Quote Alpha Foxtrot AA39X1CMB-PDBK19 when you order. The Romulus line spans two calibers, three barrel lengths, two finishes, four muzzle treatments and two optic mounting systems, and only the part number identifies a specific gun reliably; the descriptions and suffixes do not track consistently between configurations. Alpha Foxtrot publishes their lineup at Alpha Foxtrot. If you do not need threads, the standard barrel version with the same optic cut is on the shelf for less, and the rest of our handguns are here.
Why it is worth considering
- The only muzzle treatment in the range you can add to and reverse.
- An optic mounted straight to the slide, with no plate screws to work loose.
- Polished DLC over stainless, among the harder wearing finishes on a production handgun.
- Fully ambidextrous controls, which most 1911 pattern pistols charge extra for.
Who it suits
The Alpha Foxtrot Romulus RMSc Threaded suits a buyer who wants one 2011 that can change with them: run it plain, add a comp for a match season, take it off again. It also suits anyone building toward a suppressed setup who does not want to buy a second pistol later. If you know you want the flattest possible gun and will never change your mind, the ported and compensated models do that better. If you want options, this is the one.
Reviews
There are no reviews yet.