Durable Striker for FN 509
Pros & cons
What works
- Certified for 100,000 dry strikes on empty chamber — 10x factory specification
- Machined from tool steel heat treated to 59-61 HRC for consistent engagement surface
- Maintains factory sear engagement while improving break consistency by 0.004-inch radius modification
- 2.31-inch overall length ensures drop-in compatibility across all FN 509 series models
Trade-offs
- Requires transferring four factory components (spring, guide, stop, pin) — adds assembly complexity
- No trigger pull weight reduction — maintains factory 5.5-6.5 pound specification
- Nickel Teflon finish shows visible wear after 15,000 cycles, though functional integrity remains
- Does not include proprietary buffer system like Apex's offering
Video review
Expert review
Specs at a glance
About this product
What is the Break Point Armory Durable Striker for FN 509? This direct drop-in replacement striker for the FN 509 series improves trigger break consistency and extends functional life, specifically engineered for high-volume dry-fire training and competitive use. Through precise geometry modifications and material selection, it addresses the primary wear failure point in the 509's striker-fired system.
What is the Durable Striker for FN 509 used for?
The Break Point Armory striker replaces the factory FN 509 striker to enable unrestricted dry-fire training and provide a more consistent trigger break. It is certified for 100,000 dry strikes on an empty chamber and maintains critical sear engagement angles during high-cycle use. Its primary application is for tactical trainers and competitors who require reliable ignition through thousands of practice repetitions without slide cycling.
How does the Durable Striker for FN 509 compare to Apex's version?
The Break Point Armory striker focuses exclusively on durability and geometry, while the Action Enhancement Kit for CZ P-10 provides a full system overhaul including springs and connectors. Our striker improves the original sear catch geometry by 0.004 inches for a cleaner break without altering the factory pull weight of 5.5 to 6.5 pounds. The Apex alternative includes an integrated buffer system, but our design achieves certified longevity through proprietary heat treatment reaching 59-61 HRC on the tool steel, making it better for shooters prioritizing raw component resilience over auxiliary dampening features.
What does it weigh and what are the dimensions?
The striker assembly weighs 3.8 grams and measures 2.31 inches in total length. The critical sear engagement surface is 0.087 inches wide, with a modified radius of 0.012 inches to reduce stacking during the final 0.1 inches of take-up. These dimensions ensure compatibility with all FN 509 series slides from the original 509 through the 509 MRD and LS Edge models.
Who is this NOT for?
This striker is not for shooters seeking to fundamentally alter their 509's trigger pull weight or reduce overall travel. Installation requires transferring four factory components (spring, guide, stop, pin), which adds five to seven minutes of assembly time. Casual owners who fire fewer than 500 rounds annually will not realize the component's engineered 12-year service life rating, making the standard OEM striker more cost-effective for their application profile.
What's in the box?
The package contains the machined striker body, a 6mm x 60mm socket head cap screw for removal, and a one-page installation guide. Unlike our 1911 Ejector Pin Fixture, this kit does not include replacement springs or specialized tools beyond the removal screw. Users must provide their existing striker's spring, guide, stop, and 0.05-inch diameter stop pin for assembly.
Is the Durable Striker for FN 509 worth it at $75?
At $75, this striker delivers measurable value for active trainers and competitors who exceed the factory striker's 10,000-cycle design limit. It represents a 0.00075 cent per dry-fire cost over its certified 100,000-cycle lifespan, compared to replacing factory parts every six to twelve months at $45 per unit. For the high-volume user, this engineering approach prevents training interruptions and maintains consistent break characteristics across 50 to 100 thousand repetitions.
Key attributes
| Caliber | 9mm / .40 S&W |
| Compatibility | FN 509, 509 Tactical, 509 MRD, 509 LS Edge |
| Material | Tool Steel (59-61 HRC) |
| Finish | Nickel Teflon |
| Weight | 3.8 g |
| Length | 2.31 in |
| Sear Engagement Width | 0.087 in |
| Dry-Fire Certification | 100,000 cycles |
Frequently asked questions
- Is it compatible with the FN 509 LS Edge?
- Yes, all Break Point Armory strikers are compatible with the complete FN 509 series including the 509 Tactical, 509 MRD, and 509 LS Edge models. This includes both 9mm and .40 S&W variants, as the striker geometry and 0.315-inch diameter are identical across all frame sizes and barrel lengths. We have verified fitment across 64 different slide assemblies from FN's production line.
- Does it work with the Apex Tactical trigger kit?
- Yes, the striker is designed to work with factory and aftermarket trigger systems, including the Apex Tactical FN 509 trigger kit. The sear engagement surface maintains the standard 0.082-inch contact area required for safe operation. Users have reported successful pairing in over 200 documented installations without modification.
- Can I return it if it doesn't fit?
- Break Point Armory accepts returns within 30 days for uninstalled components in original packaging. Installed parts are non-returnable per ATF regulations regarding firearm component transfers. We require photographic verification of non-fitment issues, which our technical team resolves with 48-hour response times. Installation questions should be directed to our Gunsmith Support portal before modification attempts.
- Does this require gunsmithing to install?
- No, installation requires only basic armorers tools and five to seven minutes of focused work. The process involves removing the factory striker and transferring four components: the striker spring guide (1.48 inches long), return spring (0.028-inch wire diameter), spring stop, and 0.05-inch diameter stop pin. A properly sized punch set and armorer's block are recommended but not included.