Alpha Foxtrot AF1911-Romulus MOS 9mm Pistol, 3.5-inch Threaded

The Alpha Foxtrot AF1911-Romulus MOS is a 1911-pattern pistol chambered in 9mm Luger (brand part no. AA39X1QIB-XDBK19) built around a 3.5-inch threaded barrel and an MOS optic-ready slide. Alpha Foxtrot machines the frame, slide, and barrel from SUS416 stainless steel and finishes every surface in a black DLC coating, giving the Romulus MOS the corrosion resistance and low-glare look serious carry and range pistols need. The MOS slide cut accepts an adapter plate for a wide range of micro red-dot footprints, and front-and-rear slide serrations plus a textured polymer grip module keep manipulation confident under recoil or with wet hands. It ships with both 17-round and 20-round magazines, giving the shooter flexibility between a standard-capacity and extended magazine.

Key Specifications

• Chambered in 9mm Luger, a proven defensive cartridge.
• Runs a 3.5-inch threaded barrel, ready for a suppressor or muzzle device.
• Ships with both a 17-round and a 20-round magazine for flexible capacity.
• The MOS slide cut accepts an adapter plate for a wide range of red-dot footprints.
• The frame, slide, and barrel are SUS416 stainless steel, finished in black DLC for corrosion resistance.
• Front and rear slide serrations improve grip during manipulation.
• The trigger breaks at approximately 3.5 to 4 pounds, per Alpha Foxtrot’s factory spec.
• Controls are fully ambidextrous for right- or left-handed shooters.

Frequently Asked Questions

Is this slide ready for a red-dot sight? Yes, it uses an MOS optic-ready cut with adapter-plate compatibility for multiple red-dot footprints.

What magazines does this pistol ship with? Both a 17-round and a 20-round magazine are included.

Are the controls ambidextrous? Yes, the Romulus MOS is fully ambidextrous.

Buy the Alpha Foxtrot AF1911-Romulus MOS 9mm Pistol

Threaded, optic-ready, and built from stainless steel throughout, the Romulus MOS is set up for serious carry or range use straight out of the box. Order it from our Lubbock, Texas gun shop for fast, insured FFL shipping, and see more from Alpha Foxtrot in our semi-auto handguns selection.