The FX Impact M4 Air Rifle is designed for shooters who want a highly configurable PCP platform with extensive adjustment options. Its bullpup layout provides a compact overall configuration while incorporating a large number of adjustable components.

The FX Quick Set Trigger allows the trigger characteristics to be adjusted through the trigger system, while the AMP MKII regulator is designed for consistent operation and supports a maximum regulator working pressure of 170 bar.

The Power Plenum 750 provides additional air volume within the platform, while the Quick Tune System allows the rifle’s configuration to be fine-tuned. The interchangeable barrel system also allows different caliber and barrel configurations depending on the specific Impact M4 version.

The Impact M4 also features a redesigned high-capacity magazine, reversible sidelever, carbon-fiber bottle, dual WIKA gauges, integrated shroud and accessory rails.

FX Impact M4 Air Rifle

The FX Impact M4 Air Rifle is a premium precision-focused PCP air rifle from FX Airguns, designed around a highly adjustable bullpup platform. The Impact M4 combines advanced regulator technology, an adjustable trigger, Quick Tune System and interchangeable barrel configurations.

The FX Impact M4 is available in multiple calibers and configurations, allowing the platform to be adapted to different shooting applications. Current FX listings include .177, .22, .25, .30 and .35 caliber options, with different barrel lengths and configurations available depending on the selected model.

Specifications

• Brand: FX Airguns
• Model: Impact M4
• Type: PCP Air Rifle
• Calibers: .177 / .22 / .25 / .30 / .35
• Power System: Pre-Charged Pneumatic (PCP)
• Barrel System: FX Superior STX / Superior Heavy STX depending on configuration
• Barrel Length: 600 mm / 700 mm / 800 mm depending on configuration
• Overall Length: Approx. 860 mm / 1000 mm / 1120 mm depending on configuration
• Air Bottle: Carbon-Fiber Air Bottle
• Air Capacity: 480 cc / 580 cc depending on configuration
• Maximum Fill Pressure: 250 Bar
• Regulator: AMP MKII Brass Piston Regulator
• Maximum Regulator Output: 170 Bar
• Plenum: Power Plenum 750
• Trigger: FX Quick Set Trigger
• Cocking System: Reversible Sidelever
• Magazine: High-Capacity Magazine
• Magazine Capacity: Up to 34 shots in .177; 28 in .22; 25 in .25; 23 in .30; 18 in .35
• Scope Rail: 30 MOA Picatinny Rail
• Pressure Gauges: Dual WIKA Gauges
• Filling System: Foster Quick Disconnect
• Shroud: Integrated Shroud
• Grip: FX UG1 Grip
• Safety: Switch-Style Manual Safety
• Recoil Pad: Adjustable
• Accessory Rails: Picatinny Accessory Rails
• Platform: Bullpup PCP Air Rifle

Specifications can vary according to the exact Impact M4 configuration selected.

Key Features

• Highly adjustable PCP platform
• FX Impact M4 bullpup configuration
• AMP MKII regulator
• Power Plenum 750
• FX Quick Set Trigger
• Quick Tune System
• Interchangeable barrel system
• High-capacity magazine
• Reversible sidelever
• Carbon-fiber air bottle
• Dual WIKA pressure gauges
• 30 MOA Picatinny optics rail
• Integrated shroud
• Adjustable recoil pad
• Multiple accessory rails

FX states that the Impact M4 was redesigned with improvements to rigidity, trigger system, grip, magazine and scope mounting while retaining the platform’s highly configurable design.