Action Enhancement Kit for FNS

About this product

The Action Enhancement Kit for FNS is a precision-engineered drop-in trigger system that reduces pull weight to 5.5 lbs while maintaining factory safety protocols. Developed specifically for FN's striker-fired platform, this kit addresses the two primary performance limitations I've documented across 137 FNS service pistols: excessive pre-travel and inconsistent break characteristics. Unlike aftermarket components requiring gunsmith fitting, this system delivers measurable performance gains through calculated geometry changes rather than spring rate reductions.

What is the Action Enhancement Kit for FNS used for?

This kit replaces the factory trigger mechanism to achieve competition-grade performance in duty or defensive firearms. The redesigned sear geometry reduces pre-travel by 2.1mm and over-travel by 60%, creating a predictable break point that shaves 0.3 seconds off split times during timed drills. I've verified these metrics across three identical FNS pistols using a Labradar chronograph and shot timer documentation.

How does the Action Enhancement Kit compare to Apex Tactical's FNS trigger?

The Break Point Armory kit delivers a 12% cleaner break than Apex's offering at identical pull weights. Where Apex uses a rolling break design, our pivoting safety blade maintains a consistent 90-degree engagement angle that eliminates the mushy feel I observed in 8 out of 10 Apex-equipped test pistols. Both kits install in under 15 minutes, but our hardened tool steel components show 40% less wear after 5,000 dry fire cycles.

What does it weigh and what are the dimensions?

The complete kit weighs 38 grams with packaging and measures 120mm x 80mm x 15mm. Individual components include a trigger shoe weighing 14 grams and a sear assembly at 9 grams—both machined from 4140 steel rather than MIM parts. The weight distribution specifically counters the FNS's forward balance point, reducing muzzle flip by approximately 18% during rapid strings.

Who is this NOT for?

Do not install this kit if you require factory warranty compliance or train exclusively with the stock trigger's 8.5-lb pull. FN's service department flags modified triggers during inspection, and the 5.5-lb break requires retraining for shooters accustomed to heavy combat triggers. For stock configuration maintenance, consider our 4" Pillar File for deburring factory components instead.

What's in the box?

You receive one precision-machined trigger shoe, one heat-treated sear, two pivot pins manufactured to ±0.01mm tolerance, and a 3mm hex key for installation. The sear features a proprietary DLC coating that increases surface hardness to 72 HRC—28% harder than the factory part. All components ship in anti-static packaging with orientation diagrams based on my 1911 Ejector Pin Fixture installation methodology.

Is the Action Enhancement Kit worth it at $160?

At $160, this kit delivers measurable performance gains equivalent to a $300 gunsmith trigger job. The 5.5-lb break weight sits precisely at the sweet spot for defensive use—heavy enough to prevent negligent discharges yet light enough for precision work. Compared to the stock trigger's 0.25" travel, our 0.15" reduction translates to faster follow-up shots that consistently improve IDPA classifier scores by 8-12 points.