Air Arms S400 Hunter

The Air Arms S400 is one of the most respected and best-selling single-shot PCP sporters in the world. Favoured by hunters, target shooters, and HFT competitors alike, the S400 combines outstanding accuracy, refined handling, and exceptional build quality.

Developed with the same craftsmanship and engineering precision as the S410 multi-shot series, the S400 delivers full-power performance through a smooth, consistent PCP action and a match-grade Lothar Walther barrel. Each pellet is hand-loaded through a wide, easy-access bolt-action breech, making operation fast, secure, and intuitive.

The beautifully sculpted woodwork—crafted by the highly acclaimed Minelli Group—offers superb ergonomics and refined styling, while the adjustable two-stage trigger and cross-lock safety ensure complete control. An on-board pressure gauge provides instant feedback on fill pressure, keeping your shooting session smooth and predictable.

Whether you're stalking quarry, practising precision shooting, or competing in Hunter Field Target, the Air Arms S400 remains a benchmark in single-shot PCP design.

Key Features

• Single-shot bolt-action PCP sporter

• Match-grade Lothar Walther barrel, built to Air Arms specifications

• Consistent full-power action for exceptional downrange performance

• Generous breech for easy, secure hand-loading

• Ergonomic bolt handle for smooth cocking

• Adjustable two-stage trigger with cross-lock safety

• Minelli-crafted stock: premium finish and superb handling

• On-board pressure gauge for easy air management

• Available in Carbine, Classic, and FAC versions

• Right- or left-handed stocks available

• Three stock options: Beech, Walnut, Walnut Thumbhole

Specifications (Standard UK Sub-12 ft-lb Models)

Calibre Options

• .177 (4.5 mm)

• .22 (5.5 mm)

Power

• < 12 ft-lb (UK legal limit)

• FAC versions available for higher power

Shot Count

• .177: Approx. 60 shots

• .22: Approx. 80 shots

Dimensions

• Overall Length (Classic): ~1020 mm

• Overall Length (Carbine): ~35" (compact for hunting, vehicles, woodland)

• Barrel Length: ~493 mm (varies slightly by model)

Weight

• Classic: Approx. 3.0 kg

• Carbine: Lighter and shorter for improved handling

Action

• Single-shot, bolt-action

• Non-regulated firing valve system

• Quick-release fill system

• Under-stock pressure gauge

Trigger

• True two-stage adjustable trigger

• Cross-lock safety

Stock Options

• Beech

• Walnut

• Walnut Thumbhole

• Available in right- or left-hand configurations

Model Variants

S400 Classic

• Full-length version

• Ideal for target shooting and general-purpose use

• Higher shot count vs. Carbine