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DPM Recoil Reduction System for FN Herstal FNP 4.5″ & Tactical 5.3″ Barrel – .45 ACP
The FN Herstal FNP is known for its durability and precision, and a high-quality barrel is the foundation of that performance. This OEM-spec 4.5″ or 5.3″ tactical barrel is precision-machined from stainless steel and finished with a black oxide coating for superior wear resistance. Whether you need a factory replacement or want to upgrade to a threaded tactical setup for suppressor use, this barrel delivers the accuracy, reliability, and toughness your FNP deserves.
Power Rates
Slide on the battery
- Short Spring: 10lbs
- Long Spring: 11lbs
Slide full open position
- Total power: 24lbs (approx.)
Key Features
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Two Barrel Options: Standard 4.5″ for factory replacement or 5.3″ threaded tactical for suppressors and comps.
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OEM-Level Fit: Direct drop-in for FN Herstal FNP .45 ACP pistols.
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Black Oxide Stainless Steel: Built to withstand heat, corrosion, and high round counts.
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Threaded Tactical Barrel: Suppressor-ready design with included thread protector.
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Drop-In Installation: No gunsmithing required—fits directly with your slide and recoil system.
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Consistent Performance: Engineered for accuracy and reliability across thousands of rounds.
Why Choose the Tactical 5.3″ Barrel?
The extended 5.3″ barrel gives you more than just length. Its factory threading makes it easy to mount a suppressor or compensator, and the longer profile improves sight radius and recoil management. For shooters running suppressed builds or looking for added versatility, the tactical barrel is the smarter choice.
Performance You Can Trust
Cold hammer-forged stainless steel construction and a black oxide finish combine strength and durability with smooth performance. These barrels are built to run hard, resist wear, and maintain accuracy through extended use. If you rely on your FNP for defense, training, or competition, upgrading with this barrel ensures your pistol stays ready.
Installation Notes
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Fits FN Herstal FNP .45 ACP full-size pistols.
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Available in 4.5″ standard or 5.3″ threaded tactical versions.
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Drop-in design requires no modifications.
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Always test fire and re-zero your pistol after installing a new barrel.
FAQ
Will this barrel fit all FNP pistols?
Yes. Both the 4.5″ and 5.3″ versions are designed for FNP full-size .45 ACP models.
Is the 5.3″ barrel threaded for suppressors?
Yes. The tactical version is factory threaded and includes a thread protector.
What finish is used on these barrels?
They are made of stainless steel and finished with a black oxide coating for added durability and corrosion resistance.
Do I need a gunsmith to install it?
No. Both barrels are drop-in replacements and can be installed with your existing slide and recoil spring.
What’s the difference between the 4.5″ and 5.3″ versions?
The 4.5″ is a standard replacement barrel, while the 5.3″ tactical barrel offers extended length, threading for suppressors, and better sight alignment.
Will using the tactical barrel affect accuracy?
Yes—in a positive way. The longer sight radius and threading options make the tactical barrel more versatile and often improve precision.