FX AIRGUNS IMPACT COPPER M4 PCP AIR RIFLE

The FX Impact M4 Black is a highly modular PCP air rifle designed around adjustability, precision, and configuration flexibility. As part of the FX Impact platform, the M4 incorporates a number of updates intended to improve ergonomics, consistency, and overall usability.

This FX Impact M4 Black review examines its key features, including the Quick Set Trigger, AMP MkII regulator, interchangeable barrel options, high-capacity magazines, air-cylinder configurations, and available calibers.

FX Impact M4 Black

The FX Impact M4 Black is a pre-charged pneumatic (PCP) air rifle built around a modular platform. Its configuration can be adapted through different calibers, barrel lengths, air-cylinder capacities, and upper-barrel options.

The M4 generation retains the distinctive layout associated with the FX Impact series while introducing several redesigned components. These include the FX Quick Set Trigger (QST), AMP MkII brass regulator, reinforced top plate, redesigned magazines, and FX UG1 grip.

This modular approach makes the Impact M4 particularly relevant to experienced airgun enthusiasts and precision-shooting competitors researching adjustable PCP platforms.

FX Impact M4 Black UK

FX Quick Set Trigger

One of the notable updates is the FX Quick Set Trigger, designed to provide rapid adjustment of the trigger characteristics.

The system allows the trigger configuration to be adapted according to the user’s preferred setup, making it one of the more distinctive features of the M4 platform.

AMP MkII Brass Regulator

The AMP MkII regulator is another major component of the M4 design. The redesigned brass regulator is intended to provide consistent pressure management within the PCP system.

Regulator performance is particularly important when evaluating PCP air rifles because consistent pressure management can contribute to predictable shot-to-shot behavior.

Redesigned Magazines

The FX Impact M4 incorporates redesigned high-capacity magazines. The updated design is intended to provide smoother magazine rotation while increasing durability.

Listed magazine capacities vary according to caliber, with the supplied specifications indicating:

• .177: 34 shots
• .22: 28 shots
• .25: 25 shots
• .30: 23 shots

Modular Barrel System

A defining characteristic of the FX Impact M4 Black is its modular barrel system.

The platform supports several barrel configurations, including:

• Compact
• Standard
• Sniper
• Extended

Available barrel lengths in the supplied specifications range from 500mm to 800mm.

This modular architecture allows the physical configuration of the platform to vary considerably depending on the selected components.

Available Calibers

The FX Impact M4 is available in several caliber configurations:

The availability of multiple calibers is one of the platform’s defining characteristics. Caliber selection affects the rifle’s configuration, magazine capacity, air consumption, and overall ballistic characteristics.

Actual specifications can vary according to the particular configuration and market.

FX Impact M4 Air Capacity

The platform supports different air-cylinder configurations. According to the supplied specifications, air capacity ranges from 300cc to 580cc, depending on the version.

The maximum listed filling pressure is 250 bar (3,625 psi).

WIKA angled pressure gauges are incorporated to provide information about cylinder and regulator pressure. A Foster connection is also specified for the filling system.

The supplied approximate shot figures are:

These figures should be treated as configuration-dependent specifications rather than universal real-world results.

FX Impact M4 Black Ergonomics

The M4 introduces an FX UG1 AR15-style grip, designed to improve the ergonomics of the platform.

A reinforced top plate is also incorporated to increase rigidity and stability. Combined with the modular rail system, these changes form part of the M4 generation’s focus on adjustability and handling.

The rifle uses an adjustable 30 MOA Picatinny rail together with a 9–11mm dovetail interface, providing mounting flexibility for compatible equipment.

Dimensions and Weight

Because the FX Impact M4 is modular, dimensions and weight vary depending on the selected configuration.

The supplied specifications list:

• Total length: approximately 640mm to 1120mm
• Weight: approximately 2.8kg to 3.35kg
• Barrel lengths: 500mm, 600mm, 700mm, and 800mm
• Air capacity: 300cc to 580cc

The compact configuration therefore has a substantially different physical profile from the extended configuration.

Integrated Sound Suppression

The FX Impact M4 incorporates a shrouded barrel and built-in sound-management system. The supplied configuration also references an additional moderator.

This forms part of the platform’s overall design, although actual sound characteristics can vary according to the selected barrel, caliber, ammunition, and configuration.

FX Impact M4 Black for Precision Shooting

The combination of a regulated PCP system, modular barrel architecture, adjustable trigger, multiple calibers, and configurable air capacity makes the FX Impact M4 Black particularly relevant to experienced airgun enthusiasts interested in precision-oriented platforms.

Its modular design also distinguishes it from conventional fixed-configuration spring-piston air rifles.

However, performance should always be evaluated using the exact configuration being considered rather than assuming that specifications from one M4 version apply to every configuration.

FX Impact M4 Black Specifications

FX Impact M4 Black Review: Overall Assessment

The FX Impact M4 Black UK represents a highly configurable approach to PCP air-rifle design. Instead of focusing on a single fixed specification, the platform allows different barrel lengths, calibers, air-cylinder sizes, and configurations.

Its major technological features include the Quick Set Trigger, AMP MkII regulator, redesigned magazines, reinforced top plate, FX UG1 grip, modular barrel system, and adjustable rail arrangement.

For experienced airgun enthusiasts researching the FX Impact M4 Black PCP air rifle, its modular architecture is arguably its most important characteristic.

As with all airgun specifications, published performance figures can vary according to configuration and jurisdiction. Applicable laws, power limits, and permitted uses should always be verified using current local regulations.

Frequently Asked Questions

What is the FX Impact M4 Black?

The FX Impact M4 Black is a modular PCP air rifle platform incorporating an adjustable trigger, regulated air system, interchangeable barrel configurations, and multiple caliber options.

What calibers are available for the FX Impact M4?

The supplied specifications list 4.5mm (.177), 5.5mm (.22), 6.35mm (.25), and 7.62mm (.30) configurations.

What barrel lengths are available?

The supplied specifications list barrel lengths of 500mm, 600mm, 700mm, and 800mm, depending on configuration.

How much air does the FX Impact M4 hold?

Air-cylinder capacity ranges from approximately 300cc to 580cc, depending on the configuration.

What regulator does the FX Impact M4 use?

The M4 incorporates the AMP MkII brass regulator, designed for controlled and consistent pressure management.

Does the FX Impact M4 have an adjustable trigger?

Yes. The platform features the FX Quick Set Trigger (QST), which allows adjustment of the trigger characteristics.

Is the FX Impact M4 modular?

Yes. Modularity is one of its defining characteristics, with different caliber, barrel, air-cylinder, and configuration options available.

FX Impact M4 For Sale UK

The fx impact m4 black pcp air rifle is a sophisticated modular PCP air rifle platform aimed primarily at experienced airgun enthusiasts and precision-shooting users. Its combination of multiple calibers, interchangeable barrel lengths, adjustable trigger, AMP MkII regulator, high-capacity magazines, and configurable air-cylinder options gives the platform considerable flexibility.

For anyone researching an FX Impact M4 Black review, the most important point is that specifications depend heavily on the exact configuration. Comparing the caliber, barrel length, air capacity, weight, and other components together provides a more accurate picture than considering any individual specification in isolation.