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FX Impact M4 Air Rifle-.22-Black
FX Impact M4 Air Rifle-.22-Black
FX Airguns
SKU#GUN250054-2267177 FX Airguns

EX-DISPLAY FX Impact M4 .22 Air Rifle - Black (2267177)

1 in stock

The FX Impact M4 Air Rifle is a premium, modular PCP platform offering unmatched precision, consistency, and customisation. Featuring dual externally adjustable AMP regulators, a 300 cc carbon fibre bottle, and a match-grade adjustable trigger, it delivers over 250 shots per fill at sub-12 ft·lbs. The ambidextrous tactical chassis, forward sidelever, and high-capacity magazine enhance usability, while the Quick-Tune system and STX barrel ensure superior accuracy. Available in .177 or .22 calibre, with Black or Copper finishes.

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images/assets/dispatch.svg As soon as your air rifle or pistol is ready for collection we will contact you to arrange a collection time and date. This may take between 3-5 business days. If you're just purchasing a scope, mounts or accessory we aim to dispatch within 1-2 working days. UK delivery only.
Product Information FIND OUT MORE
DESCRIPTION

This is an ex-display unit that may have some cosmetic marks but has not been fired.

The FX Impact M4 Air Rifle represents the pinnacle of modern airgun engineering, delivering cutting-edge performance, customisation, and consistency for discerning shooters. Available in both .177 and .22 calibre configurations and finished in either Black or Copper, this modular PCP air rifle is built on FX’s renowned platform and tailored for sub-12 ft·lbs UK legal power.

Designed for flexibility, the Impact M4 features a fully ambidextrous tactical chassis constructed from lightweight, high-grade aluminium. It includes an ergonomic pistol grip, adjustable shoulder rest, and M-LOK compatibility, offering excellent handling and extensive accessory mounting options. At the heart of the system is a 300 cc carbon fibre air bottle, paired with dual externally adjustable AMP MKII regulators. This setup provides unrivalled shot-to-shot consistency and the ability to fine-tune performance with ease.

The forward-mounted, reversible sidelever offers smooth, intuitive cocking, while the high-capacity rotary magazine enables extended shooting sessions with a capacity of 35 shots in .177 and 28 in .22. Combined with a match-grade, fully adjustable two-stage trigger, shooters have full control over shot precision and feel.

Further enhancing its versatility, the Impact M4 is equipped with an external power wheel for both macro and micro adjustments to hammer spring tension and valve flow. The Quick-Tune system allows for rapid, tool-free tuning of key settings such as velocity and regulator pressure. Its Superior STX barrel system delivers exceptional accuracy and is easily swappable for calibre changes.

With a fill pressure of up to 250 BAR, the rifle can produce over 250 shots per fill, making it ideal for high-volume target shooting. A full-length Picatinny rail with a 20 MOA incline ensures optimal scope alignment, while additional mounting points accommodate further optics or accessories.

Compact and lightweight at just 3.1 kg unscoped and measuring 86 cm in length with a 600 mm barrel, the FX Impact M4 is a precision tool designed for shooters who demand excellence. Supplied in your choice of Black or Copper finish, and backed by a one-year FX warranty, this rifle is the ultimate expression of control, accuracy, and customisability in the sub-12 ft·lbs category.

SPECS
Calibre Options
.177 (4.5 mm), .22 (5.5 mm) – interchangeable with FX barrel kits
Power
Sub-12 ft·lbs (UK legal limit); externally adjustable
Action
Pre-charged pneumatic (PCP), regulated
Air Cylinder
300 cc carbon fibre bottle (removable)
Fill Pressure
250 BAR (3,625 psi)
Barrel Length
600 mm (23.6”)
Overall Length
860 mm (34”)
Weight (Unscoped)
Approximately 3.1 kg (6.8 lbs)
Magazine Capacity
35-shot (.177) / 28-shot (.22); optional single-shot adapter available
Trigger
Fully adjustable two-stage match trigger
Safety
Manual, located above the trigger
Stock
FX Tactical M4 chassis (Black or Copper) with adjustable shoulder rest and grip; M-LOK compatible
Cocking System
Reversible forward sidelever
Mounting Rail
Picatinny/Weaver with 20 MOA incline
Regulator
Dual externally adjustable AMP regulators
Shots Per Fill
Up to 250+ shots at 12 ft·lbs in .177 / .22
FEATURES
  • Modular FX Platform – Designed for complete customisation, allowing for interchangeable barrels, calibres, and tuning components.

  • Ambidextrous Tactical Chassis – Lightweight aluminium frame with ergonomic pistol grip and fully adjustable shoulder rest for optimal comfort and control.

  • M4 Styling – Modern tactical design available in sleek Black or distinctive Copper finishes.

  • Forward-Mounted Sidelever Cocking – Positioned for fast, intuitive, and reversible operation for both left- and right-handed shooters.

  • High-Capacity Rotary Magazine – Smooth indexing with extended shot count for minimal reloading interruptions.

  • Match-Grade Two-Stage Trigger – Fully adjustable for weight, travel, and break, giving precision control over each shot.

  • Dual AMP MKII Regulators – Independently adjustable and externally accessible for consistent pressure regulation and fine-tuning.

  • Macro and Micro Power Adjustment Wheels – External dials to fine-tune hammer spring tension and valve control.

  • Quick-Tune System – Allows real-time adjustment of key power settings without tools.

  • Superior STX Barrel System – High-efficiency, swappable liner system designed for precision and calibre flexibility.

  • Full-Length Picatinny Rail with 20 MOA Incline – Enables secure scope mounting with optimal trajectory compensation.

  • Accessory Mounting Points – Multiple additional rail segments and M-LOK slots for fitting bipods, lights, or other tactical gear.

  • Manual Safety Lever – Strategically positioned above the trigger for quick and easy access.

  • FX One-Year Warranty – Peace of mind with cover against faulty workmanship and materials.

WHAT'S IN THE BOX
  • FX Impact M4 Air Rifle
WARRANTY
  • All FX Airguns carry a One Year Warranty against faulty workmanship and defective materials.
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