The FN Five-seveN and 5.7x28mm: Is It a Legitimate Carry Option?

Quick Answer

The FN Five-seveN and 5.7x28mm cartridges are receiving renewed attention, but neither is a new concept. FN developed the cartridge decades ago alongside the P90, followed by the Five-seveN pistol, creating a firearm-and-ammunition system built around high velocity, low recoil, and substantial magazine capacity.

What's different today is the market surrounding it.

5.7x28mm was standardized by NATO in 2021, FN has introduced newer training and personal-protection ammunition, and competing pistols from manufacturers including Ruger, Smith & Wesson, and Palmetto State Armory have turned what was once an FN-dominated niche into a genuine handgun category.

That raises a much more interesting question than whether 5.7x28mm is simply unusual:

Has the FN Five-seveN—and 5.7x28mm as a whole—become a legitimate concealed-carry option?

Yes, with qualifications.

5.7x28mm offers exceptionally manageable recoil, high magazine capacity, relatively light ammunition, and purpose-built defensive loads. Its disadvantages include larger pistol dimensions in many platforms, higher ammunition cost than 9mm, and a smaller defensive-ammunition ecosystem.

It doesn't replace 9mm. But in 2026, dismissing 5.7x28mm as nothing more than a novelty is increasingly difficult.

Key Takeaways

• The FN Five-seveN remains the benchmark 5.7x28mm handgun, but today's expanding selection of pistols and ammunition has turned 5.7 into a broader commercial category.
• Low recoil and high capacity are the biggest advantages of 5.7x28mm for concealed carry, with the Five-seveN offering a 20-round standard magazine.
• Modern purpose-built defensive ammunition has strengthened the case for 5.7x28mm as a legitimate carry cartridge, although load selection remains important.
• The Five-seveN's biggest CCW compromise is its full-size footprint, while newer 5.7 platforms are beginning to offer more carry-oriented alternatives.
• 5.7x28mm isn't a replacement for 9mm. It offers a different balance of recoil, capacity, velocity, ammunition cost, and firearm size that may make it the better choice for some shooters.

Why Everyone Is Talking About the FN Five-seveN Again

The FN Five-seveN has recently returned to broader online discussion, in light of some recent events, bringing a handgun once considered highly specialized back into the concealed-carry conversation.

Rather than turning this article into a discussion of any single news event, the renewed attention provides an opportunity to examine the more useful question:

What does the FN Five-seveN actually offer as a modern defensive handgun?

The timing is particularly interesting because the commercial market surrounding the pistol is stronger than it was during much of the Five-seveN's history.

For years, 5.7x28mm was effectively synonymous with FN.

That's no longer the case.

There are now multiple competing handguns, more ammunition manufacturers supporting the cartridge, dedicated defensive loads, and even compact 5.7 pistols designed more explicitly around concealed carry.

The Five-seveN may be the firearm bringing people back to the conversation, but 5.7x28mm has become considerably bigger than one pistol.

Where 5.7x28mm Came From

Understanding the cartridge helps explain why the Five-seveN feels so different from a conventional defensive pistol.

FN developed 5.7x28mm beginning in the late 1980s as part of the same broader program that produced the P90 personal defense weapon. The Five-seveN pistol followed later, extending the cartridge into a handgun platform.

Instead of following the conventional handgun formula of a relatively large, heavy projectile traveling at moderate velocity, 5.7x28mm uses a small, lightweight projectile traveling considerably faster.

That produces several characteristics that continue to define the cartridge:

• Very low felt recoil
• High velocity
• Relatively flat trajectory
• Lightweight ammunition
• High magazine capacity
• A comparatively narrow cartridge diameter

The cartridge subsequently achieved another important milestone when NATO standardized 5.7x28mm in 2021.

For civilian shooters, however, the more important development has been commercial adoption.

The FN Five-seveN is no longer standing alone.

FN Five-seveN: The Pistol That Started the Category

Any discussion of 5.7x28mm handguns has to begin with the FN Five-seveN.

The current Five-seveN MRD represents a modernization of FN's original concept rather than a complete reinvention. It retains the features that made the pistol unusual in the first place while adding capabilities buyers now expect from a premium handgun.

Current MRD features include a 4.8-inch cold hammer-forged barrel, 20-round standard magazines, an internal single-action-only hammer, updated ergonomics, and a factory optics-mounting system.

The result is a full-size handgun that is remarkably light and soft-shooting for its capacity.

That combination is the Five-seveN's strongest argument as a defensive firearm.

Twenty rounds in a standard magazine is substantial capacity, but capacity alone isn't particularly meaningful if the firearm is difficult to control. The Five-seveN combines that capacity with one of the mildest recoil impulses available from a centerfire defensive-pistol platform.

The MRD update also corrected one of the older Five-seveN's biggest disadvantages by making modern pistol optics much easier to integrate.

Where the FN struggles is concealability.

Its long 5.7x28mm magazine contributes to a relatively large grip, and the 4.8-inch-barreled pistol is firmly in full-size territory. Someone comfortable carrying a full-size handgun can certainly work around those dimensions, but buyers coming from today's micro-compact 9mm pistols will immediately notice the difference.

Best For: Shooters who want the original premium 5.7 platform and prioritize low recoil, high capacity, shootability, and FN's established 5.7 ecosystem.

What Makes 5.7x28mm Interesting for Concealed Carry?

The cartridge's strongest CCW argument isn't simply velocity.

It's the combination of low recoil and high capacity.

A conventional defensive handgun requires compromises among firearm size, cartridge performance, recoil, and magazine capacity. 5.7x28mm shifts that balance in an interesting direction.

Because the projectile and cartridge diameter are relatively small, manufacturers can fit substantial ammunition capacity into a handgun without creating an exceptionally wide magazine.

The Five-seveN provides 20-round standard capacity. Other modern 5.7 pistols have pushed capacity even further.

At the same time, the cartridge produces very manageable recoil.

For a shooter who struggles with heavier recoil—or simply values a pistol that remains comfortable during extended range sessions—that characteristic has genuine practical value.

Low recoil doesn't eliminate the need for good shooting fundamentals, and magazine capacity doesn't compensate for poor accuracy.

But they are legitimate advantages.

The Defensive Ammunition Has Changed Too

One of the biggest developments in the modern 5.7 market has occurred inside the cartridge rather than the firearm.

FN now offers DFNS SS200, a 30-grain jacketed hollow-point load specifically marketed for personal protection. FN publishes an average velocity of approximately 2,067 fps and approximately 286 ft-lbs of muzzle energy and states that DFNS was certified through independent testing to meet the FBI ammunition-testing protocol.

FN also offers GUNR SS201, a 40-grain FMJ training load with a published velocity of approximately 1,870 fps.

That pairing addresses an important weakness of the earlier civilian 5.7 market: shooters now have FN ammunition specifically divided between defensive and training roles.

Other ammunition manufacturers have entered the category as well.

This doesn't mean every 5.7 load should be treated as interchangeable. Projectile design matters enormously with such lightweight bullets, making it particularly important to distinguish sporting, training, and purpose-designed defensive ammunition.

But the existence of dedicated defensive loads makes the modern argument for 5.7x28mm substantially stronger than simply pointing to its velocity.

5.7x28mm vs. 9mm: Different Strengths, Not a Replacement

The easiest mistake is presenting this as a cartridge destined to replace 9mm.

It isn't.

9mm remains exceptionally difficult to beat as an all-around concealed-carry cartridge because it combines effective modern defensive ammunition with inexpensive training ammunition, enormous firearm selection, widespread availability, and compact pistol designs.

5.7x28mm offers a different balance.

The case for 5.7 isn't that it wins every category.

It doesn't.

The argument is that a shooter may reasonably value low recoil, capacity, and shootability enough to accept greater ammunition expense and fewer compact handgun choices.

That's a legitimate tradeoff rather than a gimmick.

A Look at Other 5.7 Platforms and Their Influence 

The Ruger-57 Helped Break FN's Monopoly

The Ruger-57 was one of the most important firearms in the commercialization of 5.7x28mm because it demonstrated that the cartridge no longer had to be tied to an expensive FN pistol.

Ruger introduced the pistol around a 20-round magazine, polymer frame, and ergonomic layout intended to feel familiar to conventional handgun shooters. The company specifically emphasized the cartridge's low-recoil characteristics while packaging it in a modern pistol at a substantially different position in the market from the Five-seveN.

The Ruger remains a full-size handgun, so it doesn't completely solve the concealability issue associated with 5.7 pistols. What it did accomplish was arguably more important for the cartridge's future: it gave mainstream American handgun buyers another established manufacturer's entry into the category.

Once Ruger entered the market, 5.7x28mm stopped looking quite so much like an FN-specific curiosity.

Best For: Shooters wanting a mainstream, high-capacity 5.7 pistol without stepping directly into the FN Five-seveN.

Smith & Wesson M&P 5.7: A Different Approach

The Smith & Wesson M&P 5.7 further legitimized the cartridge by bringing it into one of America's best-known modern handgun families.

Rather than simply copying the operating system of another 5.7 pistol, Smith & Wesson developed the M&P 5.7 around its Tempo barrel system. The pistol also brought features modern buyers increasingly expect, including an optics-ready slide, threaded barrel, ambidextrous controls, and a slim polymer frame.

Its 22-round magazine capacity reinforces one of the cartridge's biggest selling points: a remarkable amount of ammunition can fit into a relatively slender handgun.

Like the FN and Ruger, however, the M&P 5.7 is fundamentally a full-size pistol. Its 5-inch barrel makes it attractive as a range, field, or defensive handgun, but buyers primarily concerned with deep concealment still have smaller alternatives in conventional cartridges.

The M&P's significance is broader than concealability. When a manufacturer with Smith & Wesson's presence builds an entire pistol around 5.7x28mm, it becomes much harder to characterize the cartridge as a passing trend.

Best For: Shooters who like the M&P ecosystem and want high capacity, low recoil, modern controls, and factory-ready features in a 5.7 platform.

PSA 5.7 Rock Compact: Where the CCW Question Gets Interesting

The Palmetto State Armory 5.7 Rock Compact may represent one of the most important developments for shooters specifically interested in carrying 5.7x28mm.

Earlier commercial 5.7 pistols largely shared the same problem: they were full-size handguns.

PSA shortened the Rock platform around a 4.3-inch barrel while retaining a 21-round flush-fitting magazine, creating a smaller 5.7 pistol more deliberately oriented toward concealed carry. That is a particularly interesting combination because it begins exploiting the capacity advantages of 5.7x28mm in a package designed more deliberately around everyday carry.

The Rock Compact still isn't a micro-compact. The cartridge itself imposes dimensional constraints because 5.7x28mm is substantially longer than 9mm. But reducing the overall footprint while retaining 21-round capacity demonstrates where the market may be heading.

If manufacturers continue developing shorter, lighter 5.7 pistols without sacrificing reliability or the velocity needed for their chosen defensive loads, the cartridge's CCW argument could become considerably stronger.

Best For: Shooters specifically interested in making 5.7x28mm work as a practical concealed-carry cartridge rather than simply owning a full-size 5.7 pistol.

Where the 5.7 Pistol Market Stands

Exact configurations and magazine restrictions vary by model and jurisdiction.

The table illustrates the broader story better than any single ballistic statistic.

5.7x28mm has developed into an actual handgun ecosystem.

FN remains at the center because it created both the cartridge and the pistol that introduced most shooters to it. But competition is forcing the category to evolve toward lower prices, different operating systems, larger capacities, and increasingly carry-oriented dimensions.

So, Is the FN Five-seveN a Legitimate Carry Gun?

Yes—but that doesn't automatically make it the ideal carry gun.

The Five-seveN offers a compelling combination of 20-round capacity, extremely manageable recoil, high velocity, lightweight construction, and modern optics capability. With purpose-designed defensive ammunition now available, the cartridge itself has a more credible civilian defensive ecosystem than it had years ago.

The Five-seveN's principal limitation is its physical size.

Shooters who already conceal full-size handguns may consider that a minor compromise. Someone accustomed to carrying a micro-compact 9mm may view it as a deal-breaker.

And that's where the wider 5.7 market becomes important.

The Five-seveN established the concept. Newer platforms are beginning to explore how much smaller, less expensive, and more carry-oriented a 5.7 pistol can become.

The bigger story isn't simply that the FN Five-seveN is getting attention again.

It's that the firearm now sits at the center of a cartridge category that has finally grown large enough to be evaluated as a serious alternative rather than an exotic outlier.

Final Thoughts

The renewed attention surrounding the FN Five-seveN is understandable. Few handguns look, feel, or shoot quite like it.

But the more important story is what has happened around the pistol.

FN's 5.7x28mm cartridge has progressed from a specialized cartridge associated primarily with the P90 and Five-seveN into an increasingly established commercial handgun category. NATO standardization, additional ammunition development, and competing pistols from major manufacturers have all contributed to that transition.

For concealed carry, the advantages are legitimate.

Low recoil, high capacity, lightweight ammunition, and increasingly diverse defensive-load options give 5.7x28mm characteristics that some shooters may find genuinely appealing.

There are compromises.

The FN Five-seveN remains large for concealed carry. 5.7 ammunition generally costs more than 9mm, defensive-load selection remains smaller, and the firearm, ammunition, magazine, and holster ecosystem cannot match the enormous 9mm market.

That doesn't make 5.7x28mm inadequate.

It simply means the cartridge should be evaluated for what it actually offers rather than through either extreme of the debate. It isn't an exotic wonder cartridge that makes conventional defensive handgun cartridges obsolete, and it isn't merely a range novelty without practical defensive applications.

The FN Five-seveN remains the benchmark firearm of the category, while newer pistols are demonstrating how the 5.7 concept can evolve into more affordable and increasingly carry-oriented packages.

So, is the FN Five-seveN simply the latest handgun receiving renewed attention, or is it a legitimate CCW?

It's legitimate.

Whether it's the best CCW for a particular shooter comes down to a much more practical question: Do the low recoil, 20-round capacity, and shooting characteristics of the Five-seveN provide enough benefit to justify carrying a larger pistol and paying more to keep it fed?

For some shooters, the answer will absolutely be yes.

And with the 5.7x28mm market continuing to mature, the Five-seveN is no longer the only pistol making that argument.

What was once an unusual pistol chambered in an equally unusual cartridge now sits at the center of a growing family of 5.7 handguns and long guns. If that resurgence has you thinking about adding a Five-seveN or another 5.7 firearm to your range rotation, our guide to 5.7x28mm training ammo can help you explore ammunition options for actually putting rounds downrange.

Frequently Asked Questions

Is the FN Five-seveN a good concealed carry pistol?

The FN Five-seveN can be a legitimate concealed-carry pistol, particularly for shooters who value low recoil and 20-round standard capacity. Its biggest disadvantage is size. The Five-seveN is a full-size handgun, making it more difficult to conceal than the compact and micro-compact pistols that dominate today's CCW market.

Is 5.7x28mm good for self-defense?

Modern 5.7x28mm ammunition includes loads specifically designed and marketed for personal protection. The cartridge combines high velocity with very manageable recoil and excellent magazine capacity. However, ammunition selection matters, and 5.7 should not automatically be considered superior to established defensive cartridges such as 9mm.

Does 5.7x28mm have less recoil than 9mm?

Generally, 5.7x28mm produces noticeably mild felt recoil in comparable handgun applications. This is one of the cartridge's strongest attractions for defensive use and recreational shooting.

Actual felt recoil also depends on firearm weight, design, ammunition, grip, and the individual shooter.

How many rounds does the FN Five-seveN hold?

The current FN Five-seveN MRD uses 20-round standard magazines, although magazine-capacity restrictions may apply in some jurisdictions.

Is 5.7x28mm better than 9mm?

Neither cartridge is universally better.

5.7x28mm offers very low recoil, high velocity, lightweight ammunition, and excellent magazine capacity. Meanwhile, 9mm offers substantially greater firearm selection, widespread ammunition availability, lower-cost practice ammunition, and an enormous selection of established defensive loads.

The better choice depends on what characteristics the individual shooter prioritizes.

What other pistols compete with the FN Five-seveN?

The 5.7 handgun market now includes several alternatives, including the Ruger-57, Smith & Wesson M&P 5.7, and PSA 5.7 Rock family. Their arrival is significant because it has transformed 5.7x28mm from a cartridge closely associated with FN into a broader commercial handgun category.

Is 5.7x28mm ammunition expensive?

It generally remains more expensive than common 9mm practice ammunition. Availability and manufacturer participation have improved significantly, but ammunition cost should still be considered by anyone planning to train regularly with a 5.7 pistol.

About the Author

The ProArmory editorial team includes experienced hunters, competitive shooters, military veterans, firearms instructors, and firearms industry professionals committed to producing accurate, practical, and research-based content. Our articles draw on manufacturer specifications, current industry information, and real-world shooting and hunting experience to help readers make informed decisions about firearms, ammunition, optics, hunting gear, and related equipment.

Disclaimer

This article is intended for informational and educational purposes only and should not be considered legal advice. Firearm possession, concealed carry, magazine capacity, ammunition, transportation, and defensive-use laws vary by jurisdiction and can change.

Before purchasing, carrying, or using a firearm for personal protection, verify current federal, state, and local laws as well as any applicable licensing or permitting requirements.

Always follow established firearm-safety practices, securely store firearms against unauthorized access, use ammunition appropriate for the specific firearm, and consider qualified professional training before carrying a firearm for defensive purposes.