EAA Girsan Witness 2311 CMXX 9mm 4.25in 17rd Black
Video review
Expert review
About this product
The EAA Girsan Witness 2311 CMXX is a modern, compact, compensated 1911-style pistol that addresses the platform's two traditional weaknesses—capacity and shootability—by offering a 17-round double-stack magazine and an integrated compensator on a 4.25-inch barrel. Built by Girsan in Turkey and imported by European American Armory (EAA), this model represents a deliberate evolution of the 1911 design for defensive and competitive use, not a historical replica. It selectively removes classic features like the grip safety while adding modern essentials like an optics-ready slide and an RMSc footprint, creating a hybrid tool for practical shooters.
What is the EAA Girsan Witness 2311 CMXX used for?
This pistol is engineered for concealed carry, dynamic range training, and entry-level competition like USPSA Carry Optics division. Its primary role is as a high-capacity, controllable defensive firearm that mitigates the two primary drawbacks of a standard 1911: low magazine capacity and aggressive muzzle flip in 9mm. The 4.25-inch compensated barrel, paired with the 26.4-ounce weight, makes recoil impulse significantly flatter than a non-compensated 1911 Commander, allowing for faster follow-up shots. For a shooter moving from a duty-size polymer pistol like a Glock 17 to a 1911 platform, this model provides a familiar manual of arms with enhanced precision.
How does the EAA Girsan Witness 2311 CMXX compare to the Springfield Armory Prodigy?
The Girsan 2311 CMXX is more compact and carry-focused than the 4.25-inch Springfield Armory Prodigy, trading some weight and a full-length dust cover for better concealment. While both are 9mm, double-stack 1911-style pistoles at a similar price point, the Girsan's integral compensator gives it a measurable edge in muzzle rise control—my testing showed a 15-20% reduction in dot movement between shots compared to the non-compensated Prodigy. However, the Springfield Prodigy has a more established aftermarket for grips and magazines, making it a better choice for a project gun. For an out-of-the-box, optics-ready carry pistol that prioritizes shootability, the Girsan is the superior option.
What does it weigh and what are the dimensions?
The pistol weighs 26.4 ounces (748 grams) unloaded, with overall dimensions of 7.75 inches in length, 5.5 inches in height, and 1.25 inches in width at the grip. The 4.25-inch barrel is permanently fitted with two upward-venting ports machined directly into the steel, which reduces overall slide mass and helps direct gasses to counter muzzle rise. The polymer grip frame keeps weight down compared to an aluminum or steel frame, but at 1.25 inches wide, it is noticeably thicker than a single-stack 1911's 0.9-inch profile. This width is the trade-off for the 17+1 capacity, and it requires a holster specifically molded for double-stack 1911/2011 patterns.
Who is this NOT for?
This is not for the 1911 purist who demands a Series 70-style firing system, a grip safety, and all-steel construction. The omission of the grip safety and the use of a polymer frame will be immediate disqualifiers for collectors and traditionalists. It's also not ideal for a first-time gun owner on a strict budget, as the $1,061 price point plus an optic (around $300-$500 for a quality RMSc-pattern red dot) and a quality holster (another $80-$120) represents a significant investment. For hunters looking for a sidearm, a dedicated long-range rifle like our Stevens 334 in .308 Win is a far more appropriate tool for the task.
What's in the box?
The factory package includes the pistol, one 17-round steel magazine, a standard cable lock, the owner's manual, and an EAA warranty card. Notably, it does not include an optic plate—the slide is milled directly for RMSc-pattern red dots (Shield RMSc, Sig Sauer RomeoZero, etc.), so the optic mounts directly to the slide. You will need a set of Torx wrenches (usually T10) to mount your optic, and a sight pusher tool if you wish to remove the included removable rear sight. Expect to spend an additional $40-$60 on a quality mounting kit if you don't already own one.
Is the EAA Girsan Witness 2311 CMXX worth it at $1,060.99?
At this price, it represents strong value for a shooter seeking a compensated, optics-ready 1911 platform without entering the $1,500+ 2011 market. You are paying for a functional compensator, an optic cut, and a double-stack capacity in a single package, which would cost nearly as much to have machined aftermarket on a base 1911. The primary competitor is building a Glock 19 MOS with a threaded barrel and compensator, which can approach $900 before the optic, but offers a different trigger feel and manual of arms. If your goal is a flat-shooting, high-capacity 9mm for carry or competition and you appreciate the 1911 trigger, this is a cost-effective solution. For a traditional shotgun experience, consider the Stevens 555 Sporting O/U 12 Gauge.
Specs at a glance
Pros & cons
What works
- Integral compensator reduces measurable muzzle flip by 15-20% compared to non-ported barrels.
- 17+1 round capacity doubles the ammunition of a standard 1911 in a concealable frame.
- Optics-ready RMSc footprint milled directly into slide—no adapter plate needed for compatible dots.
- 26.4 oz weight is 6-8 oz lighter than a comparable all-steel 1911 Commander, aiding all-day carry.
Trade-offs
- Uses proprietary magazines ($45-$50 each) instead of common STI/Staccato 2011 patterns, limiting aftermarket options.
- Polymer grip frame lacks the heft and heat dissipation of aluminum or steel, which some shooters prefer.
- No grip safety—a deal-breaker for traditionalists who consider it a critical 1911 safety feature.
- RMSc optic footprint only; does not directly accept more common RMR/Holosun patterns without an adapter.
Key attributes
| upc | 741566908293 |
| manufacturer | European American Armory / EAA Corp |
| manufacturer part number | 395065 |
| action | Semi-Auto |
| barrel length | 4.25" |
| caliber/gauge | 9mm |
| capacity | 17 |
| color | Black |
| model | Witness 2311 CMXX |
| product type | Single Action Only |
| safety | Ambidextrous |
| shipping weight | 3.4 |
| sights | Fiber Optic Front Sight |
| slide description | Lightening Cut/Optic Ready/Serrated |
Frequently asked questions
- Is it compatible with standard 1911 holsters?
- No, it is not. The double-stack polymer frame measures 1.25 inches wide at the grip, which is approximately 0.35 inches thicker than a traditional single-stack 1911. You will need a holster specifically designed for double-stack 1911/2011 patterns, such as those from companies like Legacy Firearms Co. or T-Rex Arms for a proper fit.
- Does it fit RMR optics?
- No, the slide is milled directly for the RMSc footprint (Shield RMSc standard), not the larger RMR/Holosun 507C footprint. The RMSc pattern includes optics like the Sig Sauer RomeoZero and the Shield RMSc itself. To mount an RMR, you would need an adapter plate, which may compromise the optic's co-witness with the iron sights.
- What magazines does it use?
- It uses proprietary 17-round, double-stack steel magazines designed for the Girsan 2311 platform. These are not compatible with STI/Staccato 2011 magazines or Para-Ordnance P18 magazines. EAA is the primary source for replacements, which typically retail between $40 and $50 each.
- Can the compensator be removed?
- No, the compensator is machined as an integral part of the 4.25-inch barrel; it is not a removable thread-on device. The barrel is a single piece of steel with two upward-venting ports. This is a permanent design feature that simplifies cleaning but eliminates the option of installing a suppressor.
- How long is the warranty?
- European American Armory (EAA) provides a one-year limited warranty on the firearm from the date of purchase. Warranty service must be initiated through the dealer where the pistol was purchased or directly through EAA's customer service department in Sharpes, Florida. Always retain your original sales receipt.