Air Arms · Rifle

Air Arms S400

Name: Air Arms S400
Brand: Air Arms

Bolt action · .177 Air (4.5mm) · introduced 1998

Also known as S400 Classic, S400 Superlite

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About the Air Arms S400

The Air Arms S400 is a British pre-charged pneumatic (PCP) air rifle introduced by Air Arms in 1998. It uses a simple, reliable bolt-action, single-shot loading system feeding a Lothar Walther match-grade barrel from a removable air cylinder. Offered in .177 and .22 calibres with a choice of sporter and carbine stocks, the S400 is widely valued for its consistency and accuracy in hunting, pest control, and target shooting, and forms the basis of the multi-shot S410 and S510 designs.

Air Arms is a Sussex-based airgun maker founded in 1983. The S400 established the company's reputation in the precharged sporting-rifle market and remains a benchmark for value and accuracy among single-shot PCP rifles.

Air Arms S400 specifications

General

Type: Rifle
Action: Bolt action
Firing mechanism: Hammer-fired
Trigger: Two stage
Trigger pull: 0.5 kg (1.1 lb)
Calibres: .177 Air (4.5mm), .22 Air (5.5mm)
Magazine capacity: 1 rounds

Dimensions

Barrel length: 493 mm (19.4 in)
Overall length: 1020 mm (40.2 in)
Weight (empty): 3.00 kg (6.61 lb)

Barrel

Rifling: Right hand

Materials

Barrel: Steel
Receiver / frame: Aluminum
Stock: Beech
Finish: blued

Performance

Muzzle velocity (typical): 165 m/s (541 fps)
Muzzle energy (typical): 16 J (12 ft·lb)
Effective range: 45 m

History

Introduced: 1998
Production status: In production
Country of origin: GB

Available calibres

.177 Air (4.5mm).22 Air (5.5mm)

Features

Bolt action cocking
Single shot loading tray
Lothar walther match barrel
Removable air cylinder
Adjustable two stage trigger
11mm dovetail rail
Ambidextrous stock options

Safety

Manual safety
Trigger safety catch

Sold primarily in sub-12 ft-lb UK-legal form, requiring no firearms certificate. The S400 MPR (Multi-Purpose Rifle) is a 10-metre target variant. The repeating S410 shares the same action with an added rotary magazine.