Air Arms S400 Rifle Length

Price range: €450.00 through €550.00

The Air Arms S400 is the most popular top class, single-shot, pre-charged pneumatic sporter of them all and for a host of good reasons.

Developed and built with the same care and precision as its 10-shot stablemate, the S400 is as comfortable in the hunting field as it is on the Hunter Field Target course.

At the heart of the Air Arms S400 is a full-power, consistent action, which feeds a match quality Lothar Walther barrel developed to Air Arms specification. Each pellet is loaded by hand via a generous- bolt-action breech and the comfortable bolt handle makes cocking and loading the rifle fast, secure and easy.

The S400s performance package is completed in the finest possible way, by stylish woodwork (produced by the highly acclaimed Minelli Group), an adjustable, two-stage trigger with a cross-lock safety catch- and an on-board pressure gauge.

Air Arms S400 Features:

  • Traditional bolt-action
  • Single-shot with wide breech for easy loading
  • Adjustable two-stage trigger with safety
  • Match grade Lothar Walther barrel
  • Built-in manometer
  • Optional moderator


Air Arms S400 Specifications:

  • Calibre: .177 | .22
  • Shot count: 60|80
  • Muzzle energy (ft/lb): < 12
  • Overall length: 925 mm
  • Barrel length: 395 mm
  • Weight: 2.8 kg

 

Included with this Rifle 

  • 2 magazines
  • 9-11mm scope rail
  • Requires genuine AA moderator or 10mm moderator adaptor
  • Fill probe
  • Lifetime warranty

 


Scope and mounts not included – for illustration purposes only

SKU: N/A Category:

Description

Air Arms S400 Rifle Length – Complete Guide to Features, Performance, and Precision

Introduction to the Air Arms S400 Rifle Length

Across the world of precision air rifles, the Air Arms S400 Rifle Length has consistently earned recognition for reliability, craftsmanship, and exceptional shooting performance. Unlike many modern air rifles that rely heavily on complex mechanisms, the S400 rifle length platform has been designed with purposeful simplicity. As a result, dependable operation is delivered while maintenance requirements are minimized.

Furthermore, the rifle has been engineered to balance accuracy, comfort, and durability. Because of these design priorities, shooters from diverse backgrounds—including beginners, hobbyists, and experienced marksmen—have continued to choose the Air Arms S400 rifle length for target shooting, pest management, and recreational airgun activities.

In addition, the rifle length configuration provides a longer barrel and balanced structure. Consequently, pellet stabilization is improved and shot consistency is enhanced. Therefore, many shooters find that the rifle length model offers greater precision compared to shorter air rifle variants.

As interest in PCP air rifles continues to grow, the Air Arms S400 Rifle Length remains one of the most respected options available in the precision airgun market.


Understanding the Air Arms S400 Rifle Platform

Before exploring the full capabilities of the Air Arms S400 Rifle Length, it is helpful to understand the broader S400 rifle platform.

Air Arms designed the S400 series as a pre-charged pneumatic (PCP) air rifle, which means compressed air stored in a cylinder powers each shot. Because this system eliminates spring recoil and vibration, greater shooting stability is achieved.

Additionally, PCP rifles are known for delivering consistent power levels across multiple shots. As a result, shooters are able to maintain tighter groupings and improved accuracy.

Core Characteristics of the S400 Platform

Several defining characteristics contribute to the popularity of the S400 platform:

  • Reliable single-shot bolt action system

  • Precision rifled barrel technology

  • Balanced rifle length configuration

  • Adjustable match-grade trigger

  • Elegant hardwood stock construction

  • Smooth shooting cycle with minimal recoil

  • High air efficiency per fill

  • Durable mechanical simplicity

Because these design elements work together, the Air Arms S400 Rifle Length has become a benchmark PCP rifle within the airgun industry.


What “Rifle Length” Means in the Air Arms S400

The term Air Arms S400 Rifle Length refers specifically to the full-length barrel version of the S400 rifle. Unlike carbine models, which are shorter and more compact, the rifle length version provides a longer barrel and extended sighting plane.

As a result, several performance benefits are achieved.

First, the longer barrel allows compressed air to act on the pellet for a greater period of time. Consequently, improved pellet velocity and efficiency are achieved.

Second, increased barrel length contributes to better pellet stabilization during travel. Therefore, tighter shot groupings are typically produced.

Third, the extended rifle body enhances overall balance. Because of this, shooters often experience improved control when aiming and firing.

Benefits of the Rifle Length Configuration

The rifle length version provides several notable advantages:

  • Improved shot consistency

  • Increased pellet velocity

  • Enhanced barrel stabilization

  • Better sight alignment

  • Balanced shooting ergonomics

Because these benefits directly influence accuracy and comfort, the Air Arms S400 Rifle Length remains the preferred configuration for precision shooters.


The History Behind the Air Arms S400

To fully appreciate the Air Arms S400 Rifle Length, it is important to understand the reputation behind its manufacturer.

Air Arms is a British company known for producing premium air rifles with exceptional engineering standards. Since its founding, the company has focused on combining traditional craftsmanship with modern airgun technology.

Throughout decades of development, Air Arms has refined its PCP rifle designs. Consequently, the S400 platform was introduced as a reliable and highly accurate rifle intended for both recreational and professional use.

Over time, the rifle gained global popularity due to its:

  • consistent performance

  • robust mechanical design

  • superior barrel quality

  • refined trigger system

Because of this reputation, the Air Arms S400 Rifle Length has become one of the most widely respected PCP air rifles available today.


Key Product Highlights of the Air Arms S400 Rifle Length

When evaluating air rifles for precision shooting, certain features are particularly important. Fortunately, the Air Arms S400 Rifle Length incorporates numerous features that enhance both performance and user experience.

Highlight Product Features

  • Precision Pre-Charged Pneumatic (PCP) power system

  • Smooth bolt-action single-shot loading

  • High-grade Lothar Walther rifled barrel

  • Elegant beech or walnut hardwood stock

  • Lightweight yet stable rifle structure

  • Consistent air delivery system

  • Integrated dovetail scope rail

  • Adjustable two-stage match trigger

  • Quiet shooting cycle with minimal recoil

  • Proven Air Arms engineering reliability

Because these features have been carefully integrated, the rifle provides an excellent balance between performance and simplicity.


Why Shooters Prefer the Air Arms S400 Rifle Length

Across the airgun market, many PCP rifles compete for attention. However, the Air Arms S400 Rifle Length continues to attract strong interest from shooters worldwide.

Several reasons explain this enduring popularity.

First, the rifle is known for exceptional accuracy. Thanks to the precision barrel and stable PCP power system, shot consistency remains extremely reliable.

Second, the rifle is relatively easy to operate. Because the single-shot bolt system contains fewer mechanical components, maintenance requirements are reduced.

Third, the rifle offers timeless craftsmanship. The wooden stock and traditional design create an aesthetic appeal that many shooters appreciate.

Reasons the S400 Rifle Length Remains Popular

  • Exceptional precision shooting capability

  • Proven long-term reliability

  • Simple yet effective mechanical design

  • Comfortable ergonomic handling

  • Elegant traditional styling

Consequently, the rifle has maintained a loyal following among airgun enthusiasts.


Overview of the Air Arms S400 Rifle Length Specifications

Understanding the technical specifications of the Air Arms S400 Rifle Length helps shooters evaluate whether it meets their needs.

Primary Specifications

  • Rifle Type: Pre-Charged Pneumatic (PCP)

  • Action: Single Shot Bolt Action

  • Barrel Type: Precision rifled steel barrel

  • Overall Length: Approximately 1020 mm (40 inches)

  • Barrel Length: Approximately 494 mm (19.5 inches)

  • Weight: Around 3.1 kg (6.8 lbs)

  • Air Cylinder Capacity: 190cc

  • Maximum Fill Pressure: 190 bar

  • Trigger System: Two-stage adjustable match trigger

  • Stock Material: Hardwood (Beech or Walnut)

  • Scope Mount: Standard dovetail rail

Because these specifications have been carefully optimized, the rifle provides a balanced combination of accuracy, power, and handling comfort.


Who the Air Arms S400 Rifle Length Is Designed For

Although the rifle delivers professional-level accuracy, the Air Arms S400 Rifle Length remains accessible to a wide range of shooters.

In fact, its simple design makes it especially appealing to individuals who want a reliable PCP rifle without complicated magazine systems.

Ideal Users of the Air Arms S400 Rifle Length

  • Beginner airgun shooters

  • Competitive target shooters

  • Backyard plinking enthusiasts

  • Pest control shooters

  • Airgun collectors

Because of its versatility, the rifle performs well in many shooting scenarios.


How the Rifle Length Improves Accuracy

Accuracy is one of the defining advantages of the Air Arms S400 Rifle Length.

Several engineering factors contribute to this performance.

First, the precision barrel ensures that pellets are guided consistently along the rifled bore.

Second, the longer barrel allows compressed air to accelerate the pellet more efficiently.

Third, the PCP system eliminates recoil vibrations commonly found in spring-powered air rifles.

Accuracy Advantages

  • Reduced vibration during firing

  • Consistent pellet velocity

  • Improved barrel stabilization

  • Enhanced trigger control

  • Balanced rifle handling

Because these factors work together, the rifle consistently delivers tight shot groupings.

Air Arms S400 Rifle Length – Features, Engineering, and Performance Analysis


Precision Barrel Technology of the Air Arms S400 Rifle Length

One of the most important components influencing accuracy is the rifle barrel. Fortunately, the Air Arms S400 Rifle Length is equipped with a high-quality precision barrel manufactured to extremely tight tolerances.

Unlike standard air rifle barrels, this model utilizes a match-grade rifled barrel, which helps guide pellets smoothly along the bore. As the pellet travels through the rifling grooves, it begins to spin. Consequently, rotational stability is achieved.

Because of this spin stabilization, pellets maintain a more predictable trajectory while traveling toward the target.

Benefits of the Precision Barrel

Several advantages result from the barrel design used in the Air Arms S400 Rifle Length:

  • Improved pellet stabilization

  • Reduced pellet deformation during travel

  • Greater shot-to-shot consistency

  • Enhanced long-range accuracy

  • Minimal air turbulence within the barrel

Furthermore, the rifle length barrel provides additional travel distance for compressed air to accelerate the pellet. As a result, improved velocity and energy efficiency are achieved.


How Barrel Length Improves Performance

The Air Arms S400 Rifle Length features a longer barrel than many compact PCP air rifles. This design decision significantly impacts performance.

When a pellet is fired, compressed air from the cylinder expands behind it. Because the pellet remains inside the barrel for a longer period of time, more energy is transferred to the projectile.

Consequently, the pellet exits the barrel with improved stability and velocity.

Advantages of the Rifle Length Barrel

  • Increased pellet acceleration

  • Improved energy transfer

  • Higher velocity efficiency

  • Enhanced shot consistency

  • Better precision for longer distances

Because these advantages directly influence shooting accuracy, many precision shooters prefer the rifle length configuration.


The Two-Stage Match Trigger System

Another defining feature of the Air Arms S400 Rifle Length is its precision two-stage adjustable trigger.

A two-stage trigger separates the pulling process into two distinct phases. First, a light initial movement occurs. Then, a crisp break releases the shot.

Because of this design, shooters are able to prepare the trigger before firing. Consequently, greater control is achieved during the moment of release.

Trigger System Benefits

  • Predictable trigger break

  • Reduced accidental trigger movement

  • Improved shot timing

  • Enhanced shooter confidence

  • Customizable trigger pull weight

Furthermore, the trigger can be adjusted to suit individual shooter preferences. Therefore, both beginner and experienced shooters can tailor the trigger response to their shooting style.


The PCP Power System Explained

The Air Arms S400 Rifle Length operates using a Pre-Charged Pneumatic (PCP) power system. In this design, compressed air stored in a cylinder is used to propel pellets.

Before shooting, the rifle’s air reservoir is filled using a high-pressure pump or compressed air tank. Once filled, the rifle can fire multiple shots before needing to be refilled.

Because the PCP system does not rely on springs or gas pistons, recoil and vibration are significantly reduced.

PCP System Advantages

  • Smooth and quiet firing cycle

  • Reduced mechanical vibration

  • Consistent pellet velocity

  • Multiple shots per air fill

  • Improved accuracy control

Consequently, PCP rifles like the Air Arms S400 Rifle Length are widely regarded as superior platforms for precision shooting.


Air Cylinder Capacity and Efficiency

The air reservoir in the Air Arms S400 Rifle Length has been carefully engineered to provide a balance between shot count and rifle weight.

Typically, the rifle includes a 190cc air cylinder, which can be filled to approximately 190 bar pressure.

Once filled, a large number of consistent shots can be produced.

Typical Shot Capacity

  • .177 caliber: approximately 70–80 consistent shots

  • .22 caliber: approximately 60–70 consistent shots

Because the rifle maintains excellent air efficiency, shooters can enjoy extended shooting sessions without frequent refilling.


Bolt Action Loading Mechanism

Unlike many modern PCP rifles that use magazine systems, the Air Arms S400 Rifle Length uses a single-shot bolt action mechanism.

Although magazine-fed rifles allow rapid firing, the single-shot design offers several precision advantages.

First, each pellet is manually loaded into the breech. As a result, proper alignment is ensured before firing.

Second, the bolt mechanism is extremely simple. Because fewer mechanical components are involved, reliability is improved.

Advantages of the Bolt Action System

  • Reduced mechanical complexity

  • Increased long-term durability

  • Precise pellet alignment

  • Smooth bolt cycling

  • Minimal risk of feeding issues

Therefore, many target shooters prefer this loading system for its reliability and accuracy benefits.


Stock Design and Ergonomics

The stock of the Air Arms S400 Rifle Length has been designed to balance both comfort and aesthetics.

Crafted from high-quality hardwood, the stock provides durability while maintaining an elegant appearance.

Moreover, the rifle’s shape has been optimized to support natural shooting posture.

Ergonomic Design Features

  • Comfortable cheek rest for stable aiming

  • Balanced weight distribution

  • Smooth grip surfaces

  • Classic hardwood craftsmanship

  • Durable protective finish

Because these ergonomic considerations have been incorporated, the rifle remains comfortable during extended shooting sessions.


Balance and Weight Distribution

Balance plays a critical role in shooting accuracy. Fortunately, the Air Arms S400 Rifle Length has been engineered to distribute weight evenly along the rifle body.

The longer barrel combined with the central air cylinder helps create a stable center of gravity.

Consequently, shooters can maintain steady aim with minimal fatigue.

Benefits of Balanced Rifle Design

  • Reduced arm strain during aiming

  • Improved target tracking

  • Greater shooting stability

  • Enhanced overall control

Because balance and stability directly affect accuracy, this feature contributes significantly to the rifle’s performance.


Noise Levels and Shooting Comfort

Another advantage of the Air Arms S400 Rifle Length is its relatively quiet firing cycle.

Since the PCP system eliminates the mechanical vibration found in spring-powered rifles, noise levels are reduced.

Additionally, the smooth air release system produces a controlled discharge.

Comfort Advantages

  • Low recoil disturbance

  • Smooth shot cycle

  • Reduced shooter fatigue

  • Improved follow-through control

Because the rifle remains stable during firing, shooters can maintain better accuracy.


Optics and Scope Compatibility

Precision shooting often requires optical sights. Fortunately, the Air Arms S400 Rifle Length includes a dovetail scope rail, which allows shooters to mount a variety of optics.

Compatible Accessories

  • Air rifle scopes

  • Variable magnification optics

  • Target shooting scopes

  • Red dot sights

Because the rifle supports multiple optic options, shooters can customize their setup according to their specific needs.


Durability and Build Quality

Durability is another factor that contributes to the popularity of the Air Arms S400 Rifle Length.

Manufactured in the United Kingdom, the rifle is built using high-quality materials and strict engineering standards.

Additionally, the mechanical simplicity of the rifle helps reduce wear and mechanical failure over time.

Durability Features

  • Precision-machined steel components

  • Strong hardwood stock construction

  • Reliable bolt mechanism

  • Robust air cylinder design

Because these components are engineered for longevity, the rifle often provides many years of dependable performance.

Air Arms S400 Rifle Length – Frequently Asked Questions (FAQ)

What is the Air Arms S400 Rifle Length?

The Air Arms S400 Rifle Length refers to the full-length configuration of the Air Arms S400 pre-charged pneumatic (PCP) air rifle. Unlike the carbine model, the rifle length version features a longer barrel and extended overall length. Because of this design, improved pellet stability and higher velocity efficiency are achieved.

Additionally, the rifle length provides better balance for many shooters. As a result, consistent accuracy is often easier to maintain during target shooting and precision practice.


What is the overall length of the Air Arms S400 Rifle Length?

Typically, the Air Arms S400 Rifle Length measures approximately 1020 mm (about 40 inches) in overall length.

Furthermore, the longer structure helps improve shooting stability. Consequently, many shooters prefer the rifle length model when precision accuracy is the primary goal.


How long is the barrel on the Air Arms S400 Rifle Length?

The barrel length of the Air Arms S400 rifle length version is approximately 494 mm (around 19.5 inches).

Because the barrel is longer than compact air rifle versions, compressed air has more time to accelerate the pellet. Therefore, improved efficiency and stability are achieved during firing.


What calibers are available for the Air Arms S400 Rifle Length?

The Air Arms S400 Rifle Length is commonly available in two popular airgun calibers:

  • .177 caliber (4.5 mm)

  • .22 caliber (5.5 mm)

While the .177 caliber is often chosen for target shooting due to flatter pellet trajectory, the .22 caliber is typically preferred for pest control because of its increased impact energy.


Is the Air Arms S400 Rifle Length accurate?

Yes, the Air Arms S400 Rifle Length is widely recognized for its excellent accuracy.

Several factors contribute to this performance:

  • precision rifled barrel

  • stable PCP air delivery system

  • adjustable two-stage trigger

  • balanced rifle design

Because these components work together, tight shot groupings can consistently be achieved.


How many shots can the Air Arms S400 Rifle Length produce per fill?

Shot count varies depending on the caliber and shooting conditions. However, the Air Arms S400 Rifle Length typically delivers:

  • 70–80 shots per fill in .177 caliber

  • 60–70 shots per fill in .22 caliber

Because the rifle uses an efficient PCP air system, consistent power can be maintained across multiple shots.


What type of action does the Air Arms S400 Rifle Length use?

The Air Arms S400 Rifle Length uses a single-shot bolt action system.

Unlike magazine-fed rifles, pellets are loaded individually into the breech. As a result, precise pellet alignment is achieved before firing.

Additionally, the bolt system contains fewer moving parts. Consequently, reliability and durability are enhanced.


Does the Air Arms S400 Rifle Length have an adjustable trigger?

Yes, the rifle includes a two-stage adjustable match trigger.

Because this trigger design separates the pull into two stages, shooters can prepare the shot before the final release. Therefore, improved control and precision are achieved.

Furthermore, trigger pull weight and responsiveness can be adjusted according to shooter preference.


Can a scope be mounted on the Air Arms S400 Rifle Length?

Yes, the Air Arms S400 Rifle Length includes a dovetail scope rail designed for mounting optics.

As a result, shooters can easily install:

  • air rifle scopes

  • target shooting optics

  • variable magnification scopes

  • red dot sights

Consequently, the rifle can be customized to suit various shooting styles.


What makes the rifle length version different from the S400 Carbine?

The primary difference between the Air Arms S400 Rifle Length and the S400 Carbine lies in barrel length and overall size.

Key Differences

Feature Rifle Length Carbine
Barrel Length Longer Shorter
Overall Length Larger More compact
Velocity Efficiency Higher Slightly lower
Handling Balanced for precision Easier for tight spaces

Because of these differences, the rifle length model is generally preferred for precision shooting, while the carbine model is favored for compact portability.


Is the Air Arms S400 Rifle Length suitable for beginners?

Yes, the Air Arms S400 Rifle Length is considered beginner-friendly.

Although it delivers professional-level accuracy, its simple bolt action design makes it easy to operate. Additionally, fewer moving parts mean maintenance is straightforward.

Therefore, beginners can quickly learn how to operate the rifle safely and effectively.


What type of air source is used for the Air Arms S400 Rifle Length?

The rifle uses compressed air stored in a PCP cylinder.

Typically, the air reservoir is filled using:

  • a high-pressure hand pump

  • a SCUBA tank

  • a compressed air charging system

Because the rifle operates on compressed air rather than springs, the shooting cycle remains smooth and vibration-free.


How durable is the Air Arms S400 Rifle Length?

The Air Arms S400 Rifle Length is known for its durability and long lifespan.

Several design elements contribute to this reliability:

  • strong steel internal components

  • precision-machined bolt system

  • high-quality hardwood stock

  • robust PCP air cylinder

Consequently, with proper care and maintenance, the rifle can remain reliable for many years.


What pellets work best with the Air Arms S400 Rifle Length?

The rifle performs best with high-quality precision pellets.

Common pellet types used with the Air Arms S400 Rifle Length include:

  • domed pellets for target shooting

  • hollow point pellets for pest control

  • match pellets for competition shooting

Because pellet quality affects accuracy, many shooters experiment with different pellet brands to find the best match for their rifle.


Is the Air Arms S400 Rifle Length good for target shooting?

Yes, the Air Arms S400 Rifle Length is widely regarded as an excellent rifle for target shooting.

Because of its precision barrel, stable PCP system, and adjustable trigger, the rifle consistently produces tight shot groupings.

Therefore, many shooters use the rifle for:

  • backyard practice

  • target competitions

  • precision airgun training


Final Thoughts on the Air Arms S400 Rifle Length FAQ

The Air Arms S400 Rifle Length continues to be one of the most respected PCP air rifles in the shooting community. Through precision engineering, reliable performance, and timeless craftsmanship, the rifle delivers an exceptional shooting experience.

Furthermore, the rifle length configuration enhances accuracy, balance, and pellet efficiency. Consequently, shooters of all experience levels can benefit from this carefully designed air rifle.

Additional information

Stock

Beech, Superlte Hunter Green, Superlite Traditional, Walnut

Caliber

.177, .22

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