Selecting defensive ammunition for pistols and personal defense weapons demands careful attention to terminal performance, overpenetration, and compatibility. For shooters who prioritize stopping power with minimized risk to bystanders, the 5.7x28mm platform offers a distinct profile that balances velocity, low recoil, and barrier performance without the bulk of larger calibers.

FN DFNS

This single box of 50 rounds contains 30-grain 5.7x28mm jacketed hollow point ammunition engineered for personal protection. New for 2023, FN DFNS is built around a copper-tin metal core that promotes controlled fragmentation and significantly reduces overpenetration compared with traditional lead-core bullets. Compatible across all 5.7x28mm firearms — most famously the P90 and Five-Seven platforms — this load is optimized for defensive roles in both pistols and PDWs. Shop this product at the retailer to review availability and purchase options.

Performance and terminal characteristics

The 5.7x28mm cartridge is a high-velocity, short-round design that delivers a flat trajectory and low felt recoil. FN DFNS uses a jacketed hollow point combined with a copper-tin core to encourage fragmentation on soft targets while limiting deep pass-through. For defensive scenarios in enclosed environments, that trade-off—effective energy transfer with reduced overpenetration—can be decisive. At an accessible price point of $40.99 per 50-round box, it provides a cost-effective option for defensive loads and limited-range familiarization.

Compatibility and practical applications

FN DFNS works across the 5.7x28mm ecosystem. Owners of Five-Seven pistols and P90 PDWs gain a purpose-built defensive option that fits factory magazines and feed systems. For home defense, vehicle carry, or PDW roles, the cartridge’s high velocity and reduced recoil enable faster follow-up shots and controllable recoil management for a wide range of shooters. For range practice, pairing FN DFNS with standard 5.7x28mm training rounds helps build competence while keeping defensive ammo reserved for contingency.

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Practical considerations

Store FN DFNS in a cool, dry place and follow all local laws for ammunition ownership and transport. When transitioning to a new defensive load, verify function and feeding in your specific platform before relying on it in a defensive context. FN’s reputation for military and law-enforcement-grade products makes FN DFNS a logical choice for shooters seeking a modern defensive 5.7x28mm option.

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