Action Enhancement Kit for FN 509

Description

The FN 509 is a serious platform, and its factory trigger leaves room for improvement. This Action Enhancement Kit from Apex is a direct drop-in replacement that transforms the feel and precision of your pistol. Designed specifically for duty rigs, competition shooting, and high-round-count training, this kit delivers measurable performance gains without compromising reliability.

The core of this kit is Apex’s patent-pending design, which originated the drop-in trigger concept for the FN 509. It directly addresses the common complaints of the factory trigger: excessive travel, a vague break, and a long reset. Once installed, you get a consistent pull weight around 5.5 lbs, a clean, crisp break, and significantly reduced pre-travel, over-travel, and reset distance. This means faster, more accurate follow-up shots and better control under pressure.

Key Benefits:

• Reduced Trigger Pull Weight: Approximately 5.5 lbs gives you a lighter, more manageable pull while maintaining a safe margin for carry or duty use.
• Shortened Travel: Pre-travel and over-travel are minimized, and the reset is dramatically shorter. This allows for faster shooting without waiting for the trigger to fully return.
• Crisp Break: A clean, predictable break eliminates the gritty, stacking feel of the factory trigger, improving shot placement at speed.
• Factory Safety Values Maintained: The center-mounted pivoting safety ensures the trigger remains drop-safe and retains all factory safety specifications.
• Direct Drop-In: No fitting, filing, or gunsmithing required. Install it yourself in minutes with basic tools.

Trigger Style Options:

Choose between two distinct trigger styles, both delivering identical performance:

• Classic Trigger: Features a radius on the front corners and flat, clean sides with no face cuts. A straightforward, no-nonsense design.
• Type 3 Trigger: Adds chamfers at the front corners and decorative face cuts on the visible sides. This gives a more aggressive, visually distinct look while keeping the same crisp performance as the Classic.

Fitment & Compatibility:

This kit is a direct drop-in replacement for all FN 509 models, including the full-size, compact, and tactical variants. No modifications to the frame or slide are needed. It works with factory and aftermarket parts, but is specifically optimized for the Apex trigger system.

Important Note on FDE Color:

Due to ongoing supply chain issues, FDE triggers have been