The FX Wildcat is a part of airgun royalty. A rifle that was compact before compact became a buzzword in airguns. A perfectly balanced and ergonomically designed bullpup that defined the generation of bullpups that have followed in its footsteps.

The FX Wildcat MKIII enhances its legacy as it updates this desired platform for the modern airgunner. The improvements start inside the Wildcat’s main block. FX has increased the plenum size and air flow of the rifle while also increasing the valving of the Wildcat. The engineering into the new Wildcat block really pushes the boundaries of what can be accomplished with precision CNC engineering.

Adjustments to the Wildcat MKIII are built around the new rear power adjuster.  This power adjuster is a breakthrough as it allows for both micro and macro adjustments using the same dial to the hammer spring. The rear power adjuster has 7 presets for your hammer, but the actual hammer tension can be adjusted more fully higher or lower using an Allen wrench through a hole found on the 8th position of the adjuster. This allows the Wildcat hammer to be fully adjustedin harmony with the AMP regulator to allow for the full range of adjustability found in other FX rifles like the FX Impact & FX Crown. This also allows for shooters to swap calibers quickly and easily (additional barrel kits will be available).

The Wildcat MKIII has also upgraded its magazine to allow the use of larger capacity magazines. No longer restrained to 8 shots, the Wildcat MKIII now more than doubles its shots using the FX Side-Shot magazine (the same magazines as found on the FX Crown and FX Dreamline). All Wildcat MKIII rifles and barrel kits will ship with FX’s recently released new Superior STX Barrel Liners. The liners are housed in the STX Interchangeable barrel liner system that allows users to switch to the Superior STX Heavy liner if they want to shoot heavier slugs. The other features of the Wildcat remain intact. The externally adjustable AMP regulator, two stage adjustable trigger (easily one of the best triggers found on any bullpup), and the smooth side cocking lever perfectly positioned above the trigger.

The Wildcat MKIII comes in two configurations, Wildcat MKIII Compact and Wildcat MKIII Sniper. All rifles offered in a synthetic stock.

Wildcat MkIII Compact
Comes with 500 mm barrel.
Calibers available: 4,5 (.177) – 5,5 (.22) – 6,35 (.25) – 7,62 (.30).

Wildcat MkIII Sniper
Comes with 700mm barrel and a larger 300cc air cylinder.
Caliber available: 5,5 (.22) – 6,35 (.25) – 7,62 (.30).

Note: Muzzle energy listed in the specifications of each rifle is for the maximum setting. Due to differences in regulations the rifle might be set to a lower muzzle energy from the factory. Contact your dealer for more info.

Cocking system Forward positioned sidelever
Magazine type Removable high capacity

22 shot when Cal .177

18 shot when Cal .22

16 shot when Cal .25

13 shot when Cal .30

Stock Synthetic with soft-touch surface.
Barrel FX Smooth Twist X Superior Liner

*all except caliber 4,5 which use STX.


4,5 (.177) Length 500 mm

5,5 (.22) Length 500 mm

6,35 (.25) Length 500 mm

7,62 (.30) Length 500 mm


5,5 (.22) Length 700 mm

6,35 (.25) Length 700 mm

7,62 (.30) Length 700 mm

Fill pressure 230 Bar (3300 psi)
Safety Manual
Optics 11 mm dovetail scope mount 

(pica-tinny rail available as upgrade and accessory)

Shot Capacity Compact:
4,5 (.177) ≈ 120 shots @ 20ft/lbs. ≈ shots @ 12ft/lbs TBA
5,5 (.22): ≈ 60 shots @ 30ft/lbs. ≈ shots @ 12ft/lbs TBA
6,35 (.25): ≈ 35 shots @ 55ft/lbs.
7,62 (.30): ≈ 18 shots @ 67ft/lbs.
5,5 (.22): ≈ 90 shots @ 34ft/lbs.
6,35 (.25): ≈ 55 shots @ 47ft/lbs.
7,62 (.30): ≈ 35 shots @ 75ft/lbs.
Muzzle Built-In Shroud system with ½” UNF thread

(variations may occur depending on country).

Pressure gauge One for airtube pressure

One for regulator pressure

Trigger Adjustable match trigger
Energy Compact: 

4,5 (.177): up to 27 Joule – 20ft/lbs. 

5,5 (.22): up to 55 Joule – 40ft/lbs.

6,35 (.25): up to 75 Joule – 55ft/lbs.

7,62 (.30): up to 95 Joule – 70ft/lbs. 


5,5 (.22): up to 68 Joule – 50ft/lbs.

6,35 (.25): up to 95 Joule – 70ft/lbs.

7,62 (.30): up to 115 Joule – 85ft/lbs. 

Air capacity Compact: 230 cc

Sniper: 300 cc

Air cylinder

Not removable

Length Compact: 675 mm

Sniper: 790 mm

Charging Quick charge system MkI
Weight Compact: 2,8kg

Sniper: 3kg

More features Power adjuster (hammer spring tension), 

Interchangable Caliber System, 

AMP Regulator – Externally Adjustable,