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FX King Airgun | GRS Stock | Green Mountain Laminate
$2,599.99
No longer available
FX King Airgun | GRS Stock | Green Mountain Laminate
Pure Hunting Power. Norwegian Handmade GRS Stock. Dynamic Plenum.
The FX King is a powerful, purpose-built hunting air rifle that combines FX's cutting-edge Dynamic Plenum technology with a handmade Norwegian GRS stock — available in the stunning Green Mountain Laminate. Built for hunters, benchrest competitors, and field target shooters who demand the best in power, precision, and ergonomics, the King delivers up to 173 fpe in .35 caliber and features the integrated Quick Tune system, dual-angled WIKA gauges, and FX's revolutionary over-barrel Dynamic Plenum for consistent regulated pressure and enhanced barrel rigidity.
Overview
The King's Dynamic Plenum wraps consistent regulated pressure around the barrel — increasing rigidity and delivering exceptional shot-to-shot consistency across all caliber options. The integrated Quick Tune system allows fine-tuning based on personal ammunition preferences without removing the rifle from its stock. Dual-angled WIKA gauges on the left side of the block display bottle pressure and regulated plenum pressure at a glance, and the 30 MOA Picatinny scope rail, adjustable trigger, and side Picatinny rails for accessories complete a hunting-ready platform right out of the box.
The GRS stock is handmade in Norway and custom-designed specifically for the King — available in right-hand and left-hand configurations with an angled grip for ergonomic, comfortable shooting in any position. Each FX King ships in a high-quality hard case with custom-cut foam.
⚠️ Maximum power on 500mm and 600mm configurations can only be achieved using a Tungsten Hammer Weight.
Key Features
- FX Dynamic Plenum — consistent regulated pressure around barrel for enhanced rigidity
- Integrated Quick Tune system for ammunition-specific fine-tuning
- Dual-angled WIKA gauges — bottle pressure and regulated plenum pressure
- 30 MOA Picatinny scope rail
- Side Picatinny rails for flashlights, lasers, and bipods
- Adjustable trigger
- GRS stock — handmade in Norway, custom-designed for the King
- Available in right-hand and left-hand configurations
- Angled grip for ergonomic shooting in any position
- 480cc carbon fiber wrapped air bottle
- 250 BAR / 3,625 PSI max fill pressure
- Side Shot magazine with 0.51" deep lid for slugs up to 13mm
- 500mm — Superior STX liner / 600mm — Superior Heavy STX liner
- Available in .177, .22, .25, .30, and .35 caliber
- Ships in high-quality hard case with custom-cut foam
- Available in Green Mountain, Hunter Brown, and Nordic Wolf laminates
Magazine Capacity by Caliber
| Caliber | Capacity |
|---|---|
| .177 | 21 rounds |
| .22 | 18 rounds |
| .25 | 15 rounds |
| .30 | 13 rounds |
| .35 | 10 rounds |
Performance by Caliber and Barrel Length
| Caliber | Max Velocity (500mm/600mm) | Max Energy (500mm/600mm) | Shots Per Fill (500mm/600mm) |
|---|---|---|---|
| .22 | 960 / 1,040 fps | 70 / 82 fpe | 180 / 128 |
| .25 | 910 / 970 fps | 80 / 91 fpe | 90 / 96 |
| .30 | 880 / 1,020 fps | 110 / 130 fpe | 70 / 56 |
| .35 | 865 / 915 fps | 135 / 173 fpe | 30 / 26 |
FX King Configuration Options
- 500mm — Superior STX liner (Superior Heavy in .35) / 38.2" overall / 7.6 lbs
- 600mm — Superior Heavy STX liner (all calibers) / 42.3" overall / 7.9 lbs
Available Stock Options
- Green Mountain Laminate
- Hunter Brown Laminate
- Nordic Wolf Laminate
Specifications
| Spec | Value |
|---|---|
| Caliber | .177 / .22 / .25 / .30 / .35 |
| Overall Length (500mm) | 38.2 inches |
| Overall Length (600mm) | 42.3 inches |
| Weight (500mm) | 7.6 lbs |
| Weight (600mm) | 7.9 lbs |
| Air Capacity | 480cc Carbon Fiber |
| Fill Pressure | 250 BAR (3,625 PSI) |
| Plenum | Dynamic Plenum |
| Scope Rail | 30 MOA Picatinny |
| Stock | GRS — handmade in Norway |
| Magazine Depth | 0.51" (13mm max slug length) |
| Case | High-quality hard case with custom foam |
⚠️ Maximum power requires Tungsten Hammer Weight — sold separately.
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