Description
The Wilson Combat SFX9 4 Inch X-TAC Ambi (Wilson model SFX9-CPR4-A) is a double-stack 9mm built on Wilson’s solid X-frame, with a 4 inch barrel, 15-round magazines, an X-TAC accessory rail and an ambidextrous thumb safety. It aims to give the feel of a fine 1911 with the capacity of a modern duty pistol.

Wilson Combat SFX9 4 Inch X-TAC Ambi Overview
Distributor listings describe the SFX9 frame as machined from solid T6-7075 aluminum with Wilson’s X-TAC treatment on the front and back straps. The 4 inch stainless cone barrel uses a flush-cut reverse crown, and the stainless tri-top slide has an external extractor, 30 LPI top serrations and a black DLC finish. Sights are a Concealment Battlesight rear with a red fiber optic front. The trigger breaks at about 3.5 to 4.5 pounds, and the gun ships with two 15-round EDC X9-type magazines made by Mec-Gar.
Solid Frame Design
Unlike a 2011 with a separate polymer grip, the SFX9 frame is one piece of aluminum, which keeps it slim for a double stack and avoids grip-module flex. Aluminum saves weight over steel but will not match a steel frame for very high round counts, so follow Wilson’s service advice if you shoot it heavily.

Capacity in a Carry Package
Fifteen rounds in a 4 inch package puts the SFX9 in the same class as popular compact polymer pistols, but with a single-action trigger and hand fitting. It is larger and heavier than a micro-compact, so plan on a good IWB holster and belt. Several states limit magazines to 10 or 15 rounds.
Ambidextrous Safety and Rail
This model has an ambidextrous thumb safety, which helps left-handed carriers. The X-TAC Lightrail takes a compact weapon light, but holster options shrink once a light is mounted, so confirm fit first. The photos show the standard SFX9 4 inch Lightrail; the ambi version adds the right-side safety lever.
Sights
The red fiber optic front is quick in daylight but does not glow in the dark. Wilson offers red dot machining on some SFX9 configurations; this listing is not described as optic cut, so check with your FFL if a dot is a must.
Ownership
The SFX9 uses its own EDC X9-pattern magazines, which cost more than common polymer-gun mags. Holster makers cover it well, but not as widely as Glock or 1911 Government frames. Expect strong resale and Wilson factory support.
State Laws and Ownership
Pennsylvania has no handgun roster and no magazine capacity limit, but handgun transfers run through the state PICS check. Other states, including California, Massachusetts and New York, restrict which handguns dealers may sell, and several states cap magazines at 10 or 15 rounds. Check your own state and local rules and confirm with your receiving FFL before ordering.
Specifications
- Manufacturer: Wilson Combat
- Model: SFX9 Compact, 4 in., Lightrail, Ambi, SFX9-CPR4-A
- UPC: 810025506551
- Caliber: 9mm Luger
- Action: Single action
- Barrel: 4 in. stainless cone barrel, flush-cut reverse crown
- Slide: Stainless steel tri-top, black DLC, external extractor
- Frame: Solid T6-7075 aluminum X-frame with X-TAC treatment and accessory rail
- Capacity: 15+1, two 15 rd EDC X9-type magazines
- Sights: Concealment Battlesight rear, red fiber optic front
- Safety: Ambidextrous thumb safety
- Trigger: About 3.5 to 4.5 lb
- Length: About 7.4 in. (distributor listing)
Before You Buy
Federal law requires handgun buyers to be at least 21 years old when buying from a licensed dealer, and the pistol transfers at your FFL with a Form 4473 and background check. Check your state’s magazine limit before ordering a 15-round pistol.
Who It Is For
The Wilson Combat SFX9 4 Inch X-TAC Ambi is a great fit for carriers who want a hand-built double-stack 9mm with a crisp single-action trigger and ambidextrous controls.
Buy the Wilson Combat SFX9 4 Inch X-TAC Ambi at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the Wilson Combat SFX9 4 Inch X-TAC Ambi online and ship it to your local FFL dealer, or browse our full selection of firearms for more pistols. For factory details, visit Wilson Combat.







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