FX Impact Slugs Power Kit
Elevate your FX Impact into a precision powerhouse with the FX Impact Slugs Power Kit—an essential upgrade for serious shooters who demand extra velocity, razor-sharp accuracy, and uncompromised reliability. Born from FX Airguns’ Swedish heritage of innovation and craftsmanship, this tailored kit injects fresh performance into your precharged pneumatic rifle without sacrificing the legendary smoothness and silence you’ve come to expect.
At its heart lies an adjustable 5.5 mm (.22) pellet probe, easily tuned via a rear Allen screw to dial in perfect slug seating and flight. Two interference-fit bushes allow swift conversion to 6.35 mm (.25), so you can fine-tune one specific slug for your preferred caliber. The result? Consistently centered projectiles and tighter groupings—shot after shot.
To unlock higher muzzle velocities, the Power Kit replaces your stock valve return spring with a lighter, faster-reacting alternative. This simple swap keeps the valve open fractions longer, boosting slug speed without increasing noise or recoil. Complementing this is a precision-engineered hammer spacer that adds both mass and spring preload, ensuring a stronger, more forceful strike for each shot. A dedicated buffer cushions the valve against the added impact, maintaining long-term durability and flawless operation.
Feel the difference on steel or paper:
• 5.5 mm (.22) slugs gain 35–55 fps
• 6.35 mm (.25) slugs gain 50–80 fps
• 7.62 mm (.30) slugs gain 30–60 fps (using the original probe)
Every component is CNC-machined in Sweden to ultra-tight tolerances, guaranteeing consistent performance and drop-in compatibility with all FX Impact models. Whether you’re stalking game at dawn or chasing new personal bests on the range, the FX Impact Slugs Power Kit transforms your rifle into a finishing tool—delivering impressive speed, surgical accuracy, and enduring reliability.
Upgrade today and experience:
• Higher power with minimal fuss
• Tailored slug tuning for pinpoint precision
• Rock-solid durability, shot after shot
• Fast, tool-free caliber adjustments
Push your FX Impact to its ultimate potential—because when every foot-per-second counts, the Slugs Power Kit is the edge you need.
Key Features and Specifications
- Adjustable 5.5 mm (.22) pellet probe with rear Allen screw—fine-tune slug seating for tighter groups
- Interference-fit bushes for quick 6.35 mm (.25) conversion—versatile caliber compatibility
- Lighter valve return spring—increases dwell time for 35–80 fps velocity boost depending on caliber
- Hammer spacer with increased mass and preload—stronger valve strike for consistent power
- Protective buffer—shields valve from added impact and extends service life
- CNC-machined Swedish components—guaranteed drop-in fit and ultra-tight tolerances
- Universal fit—all FX Impact models supported for seamless upgrade
Please check out other Fx products.







