

Hunter: A compact, lighter, faster Panthera MKII redesigned for real‑world hunting mobility.
Compared to the standard Panthera MKII, the Hunter version features a repositioned air bottle and a shorter overall length and barrel, creating a platform that is easier to carry and quicker to handle in dense terrain.
These changes also result in a lighter rifle, with a reduced shot count and lower maximum energy, but with far greater mobility and real‑world hunting practicality.
The footprint is smaller, and it weighs less than 2900 g, making it an excellent choice for those who want the precision and performance, but are willing to make some trade offs for portability.
Barrel: 300 mm Caliber: 4.50 mm (.177"), 5.50 mm (.22")

A Refined Precision Platform.. Presenting the FX Panthera MKII.
The Panthera MKII builds on the strengths of the original Panthera line, introducing a series of structural and mechanical upgrades that sharpen its consistency, ergonomics, and long‑range capability.
Heritage
The original FX Panthera quickly became a landmark in modern airgun design.
Its ergonomics, and design priorities were undeniably competition‑driven, and it broke away from traditional hunting‑centric platforms and introduced a purpose‑built chassis system with a long Arca forend and a more forward‑mounted 300 cc carbon fiber bottle that balanced the rifle beautifully.
Its modularity, tuning freedom, and STX barrel technology set new expectations for what a competition air rifle could be.
The Panthera didn’t just enter the PRS‑style airgun scene, it helped define it, pushing other manufacturers to rethink performance, ergonomics, and adaptability in high‑end air rifles.
What's new:
The Panthera MKII brings several key upgrades.
In the standard Panthera MKII, a reinforced aluminum forend boosts rigidity, adds a full Arca rail, M‑LOK slots, internal weight channels, and an integrated 30 MOA Picatinny rail.
The new Quick Set Trigger offers three selectable profiles for PRS, hunting, and benchrest.
Air regulation is handled by the AMP MKII regulator with dual gauges for precise tuning.
A 163 cc plenum now surrounds the barrel, paired with an enlarged breech for longer slugs and a high‑flow, short‑impulse one‑piece valve.
Rear airflow routing is raised for better cheek weld.
The Quick Tune System provides macro and micro hammer adjustments, while the Superior STX barrel system continues with interchangeable liners and smooth, externally pressed rifling.
The scaled down FX Panthera MKII Hunter
Taking the raw precision of the Panthera MKII platform and reshaping it into a shorter, faster, more maneuverable hunting tool.
While the standard Panthera MKII is built around long‑range stability, competition ergonomics, and maximum air capacity, the Hunter Compact trims the overall length, reduces weight, and shifts the balance point forward for quicker target acquisition in dense terrain.
It keeps the Panthera’s refined action, smooth sidelever, and tuning flexibility, but packages them into a rifle that’s easier to shoulder, easier to carry, and purpose‑built for real‑world hunting where mobility matters more than benchrest rigidity.
The main differences are the repositioning of the air bottle, extra Picatinny slots instead of M-Lok, overall shorter length and shorter barrel making it a more compact platform, and reduction of weight, shot capacity, and max energy.
Adaptability at the Core
The Panthera MKII was built with competitive shooters in mind, and its design reflects that philosophy: every major system is engineered to be shaped, tuned, and refined to match the shooter’s intent.
Its upgraded Panthera Block, enlarged plenum, and AMP MKII regulator work together to create a platform that responds predictably to tuning changes. With the macro and micro hammer adjustments, dialing in a setup for different slug weights, distances, or match conditions becomes a deliberate, repeatable process.
A Platform That Conforms to You
The reinforced aluminum forend brings new stiffness to the chassis, reducing flex and helping the rifle maintain perfect tracking under load. Integrated mounting options, give shooters the freedom to configure the rifle for barricades, tripods, bipods, or heavy optics without compromise.
Trigger Profiles for Every Discipline
The Quick Set Trigger adds another layer of adaptability. Three selectable modes let shooters shift instantly between PRS‑style responsiveness, hunting practicality, or the controlled precision needed for benchrest. No tools, no disassembly - just a quick adjustment, and the rifle changes character.
Ready for Modern Ammunition
With its enlarged breech and slug‑friendly geometry, the Panthera MKII accepts projectiles up to 13 mm in length. This gives shooters the freedom to experiment with modern slug designs and tailor performance to their caliber and barrel choice.
FX Panthera MKII: The Evolution Continues.

Functional design:
The FX Panthera MKII is shaped around the idea of delivering unwavering stability and precision, especially for shooters who demand predictable behaviour across long‑range and competition environments. Every update in the MKII platform reinforces rigidity, tuning control, and ergonomic refinement.
At the heart of the rifle is FX’s enhanced Panthera Block and high‑flow valve system, working together with the AMP MKII regulator and enlarged plenum to maintain consistent pressure delivery, even when pushing heavy slugs at elevated power levels. This synergy ensures the rifle stays steady shot after shot.
The Quick Set Trigger adds another layer of adaptability. With three selectable profiles tailored for PRS, hunting, and benchrest, it gives shooters instant control over trigger feel without disassembling anything. Each mode is designed to offer a clean, predictable break suited to its discipline.
For smooth cycling, the side‑lever action remains a key component of the Panthera lineage. Its placement and mechanical refinement allow rapid follow‑up shots while keeping the rifle anchored in position, reducing shooter movement and maintaining sight alignment.



Highlights:
The FX Panthera MKII is built for precision, stability, and tuning freedom. Every upgrade strengthens its role as a competition-ready platform, delivering consistent performance with modern slug ammunition. Here’s a closer look at its defining features.
Aluminium Forend
A reinforced aluminium forend increases rigidity and reduces flex under load. It includes a full-length Arca-Swiss rail for bipods or tripods, M-LOK slots on the sides, and internal channels for optional balancing weights. A fully integrated 30 MOA Picatinny rail ensures reliable zero retention with long-range optics.
Quick Set Trigger (QST)
The QST system provides three selectable trigger profiles suited for PRS, hunting, or benchrest. Adjustments can be made instantly without removing the trigger guard, allowing fast adaptation to different shooting styles.
Regulator
The single AMP MKII regulator, paired with its dedicated gauge, allows precise control of the pressure coming from the 250-bar, 300 cc bottle. This ensures stable plenum pressure and consistent shot output across a wide range of ammunition.
Panthera Plenum
A large 163 cc plenum surrounds the barrel, keeping a high volume of regulated air ready for each shot. This design is ideal for high-power slug setups where airflow stability is critical.
Air Capacity
The high-capacity carbon fiber bottle supports extended shooting sessions, reducing the need for frequent refills during training or competition.
Panthera Block
The enlarged breech accepts slugs up to 13 mm, reinforcing the rifle's slug-focused design. The high-flow, short impulse one-piece valve delivers fast, efficient airflow for maximum consistency.
Quick Tune System
Macro and micro hammer-spring adjustments make tuning intuitive. The numbered macro wheel allows rapid changes, while the micro adjuster provides fine, repeatable control for precision tuning.
Superior STX
The Superior STX barrel system uses an interchangeable STX liner with externally pressed rifling, ensuring a smooth bore and excellent projectile sealing for top-tier accuracy.


Observations:
- The scope depicted is for illustrative purposes. A selection of scopes is available for purchase.
- The FX Panthera MKII makes a grand entrance, encased in a robust hard case with precision-cut foam, ensuring your rifle is transported and stored in style.
- The FX Panthera MKII is available in a multitude of options, including the hunter, 500, 600, 700 mm in calibers 4.50 mm (.177") and 5.50 mm (.22").


About FX Airguns:
Craftsmanship is at the heart of FX Airguns, with a dedicated team of Swedish artisans and engineers whose expertise is unparalleled. Their meticulous attention to detail ensures that no airgun leaves the factory without passing rigorous tests, guaranteeing unmatched precision, reliability, and power. FX Airguns have consistently set the standard, outshining competitors with grace.
Pioneers in innovation, FX Airguns hold numerous patents and have introduced unique advancements that place them at the pinnacle of technological evolution in airgun manufacturing.
The essence of FX Airguns lies in their unwavering passion for airgun sports and their relentless pursuit of excellence. As technology continues to advance, the potential for groundbreaking airguns remains boundless, nurtured by the inventive spirit of Mariestad.

| Caliber | 4.50mm (.177) | 5.50mm (.22) |
| Regulated | Yes |
| Pressure Gauge | Yes |
| Regulator Gauge | Yes |
| Open Sight | No |
| Optics Included | No |
| Cocking System | Adjustable Side Lever |
| Power Source | PCP |
| Shooting Mode | Manual |
| Air Reserve | Air Bottle |
| Plenum | 163 cc |
| Air Capacity | 300 cc |
| Max Fill Pressure | 250 Bar (3625 Psi) |
| Number of Shots | 18 |
| Barrel Type | STX Superior Heavy liner |
| Barrel Lenght | 300 mm |
| Mounting Rail | Weaver | Picatinny |
| Ambidextrous | Yes |
| Safety | Yes |
| Stock | Tactical |
| Stock Material | Synthetic |
| Stock Finish | Mate |
| Grip | FX UG1 |
| Grip Material | Soft-Touch Synthetic |
| Grip Finish | Mate |
| Overall Lenght | 775 mm |
| Transport Case | Yes |
| Product Total Weight | 2.88 Kg |
| Country of Manufacture | Sweden |