Air Rifle FX Panthera MKII 600 6.35mm

FX Panthera MkII air rifle is designed in every respect for competition shooting and precision shooting with pellets and slugs at long distances. It follows on from the original FX Panthera model and retains the proven Dynamic Block platform, Dynamic Plenum system and FX Superior STX barrel series, but adds a more rigid construction, a redesigned fore-end with an integrated 30MOA Picatinny rail, an AMP MKII regulator and a new Quick Set Trigger mechanism.

Its main advantage is extreme accuracy thanks to the top-class FX Superior STX barrel, also known as Smooth Twist X, whose rifling is pressed from the outside. The inner surface of the barrel is therefore smooth without any imperfections, reducing air resistance and projectile friction when firing. At the end of the barrel there is a standard 1/2UNF thread for installing a moderator.

The FX Panthera MkII air rifle is manufactured in several versions according to barrel length – 500 mm, 600 mm and 700 mm and in calibres 4.5 mm, 5.5 mm, 6.35 mm and 7.62 mm.

Dynamic Block for shooting slugs

The air rifle is also equipped with a Dynamic Block breech designed for shooting slugs at long distances. The breech uses a high-flow short-impulse valve that ensures precise dosing of a large volume of air. Compared to other breeches, Dynamic Block allows the use of up to 13 mm long pellets or slugs – the magazine with a deeper lid is also adapted to this.

The air rifle uses a plenum placed around the barrel, which forms a reservoir of regulated air directly in front of the valve. Its volume varies according to barrel length – the 500 mm version uses a plenum with a capacity of 62 cc, while the 600 mm and 700 mm barrel versions have a plenum with a capacity of 156 cc. The result is a fast response and sufficient air for heavier projectiles intended for precision shooting at longer distances.

Rigid fore-end and integrated mounting interface

One of the main changes of the MkII version is the new aluminium fore-end, which reinforces the whole assembly and reduces unwanted flex when using a bipod, tripod or other support. The upper part of the fore-end is formed by an integrated 30MOA Picatinny rail, which provides sufficient space for mounting a riflescope and at the same time helps with shooting at longer distances.

The lower part of the fore-end uses an Arca-Swiss rail for attaching a bipod or tripod. Side M-LOK slots allow mounting of additional accessories and the internal space of the fore-end can be used to add weights and fine-tune the balance of the whole setup. A Barricade Stop element for shooting from a barricade and a QD sling swivel mount are also included.

Quick Set Trigger and precise tuning

A new feature of the FX Panthera MkII model is the Quick Set Trigger mechanism with three preset profiles for different shooting disciplines. The trigger can be adapted for dynamic PRS-style shooting, hunting use, or a maximally light pull for benchrest. The settings can be changed from the outside without removing the trigger guard.

Precise air dosing is controlled by the AMP MKII regulator with its own manometer. Power tuning is further enhanced by the Quick Tune system with macro and micro adjustment of the hammer spring preload, allowing the air rifle to be adapted to a specific shooting setup and chosen ammunition.

Ergonomics and controls

Reloading is operated by a side biathlon-style lever with smooth action, which can be switched to the left or right side. The air rifle thus suits right- and left-handed shooters. The MkII design also brings more space around the grip, a higher cheek piece and an adjustable buttpad, so the rifle can be better adjusted to the shooter and the chosen shooting position.

The chassis includes an FX UG1 grip in AR-15 standard. Thanks to this, it can be replaced if necessary with another compatible AR-15 grip according to the shooter’s preferences. The air rifle is fitted with a 300 cc carbon bottle and is filled via a quick coupler with 1/8" BSP thread.

Practical polymer case

The FX Panthera MkII is supplied in a polymer case lined with foam. The internal cut-outs are designed so that you can store the air rifle with the riflescope and bipod mounted. This is particularly practical for shooters who want to have the setup ready for transport without having to constantly remove accessories or buy another case.

Main advantages

• Design engineered for competition long-range shooting
• Dynamic Block platform allowing the use of projectiles up to 13 mm in length
• FX Superior STX barrel with interchangeable liner
• Rigid fore-end with Arca-Swiss rail, M-LOK slots and 30MOA Picatinny rail
• Quick Set Trigger with three adjustment profiles
• AMP MKII regulator and Quick Tune system for precise power tuning
• Polymer case with cut-outs for the air rifle with riflescope and bipod