Date: 23/6/2024 21:11

PY-2281-4570

Air Arms S400 Biathlon Air Rifle

Main Product Rating 5.05.0 (3 reviews)
Air Arms S400 Biathlon Air Rifle

Air Arms S400, Image 1Air Arms S400, Image 2Air Arms S400, Image 3Air Arms S400, Image 4Air Arms S400, Image 5Air Arms S400, Image 6Air Arms S400, Image 7Air Arms S400, Image 8Air Arms S400, Image 9Air Arms S400, Image 10Air Arms S400, Image 11Air Arms S400, Image 12

Share your images

$1,599.99

List Price $1,999.99Save $400.00(20%)

  • Lifetime limited warranty

  • 60 day money back guarantee
  • Estimate Shipping

Add to Compare
Add to Wish list

Excluded from coupons

Earn 1600 Bullseye Bucks

Please Note:

Updated selection based on available products

Add to Cart

In-stock


Sold & shipped by Pyramyd AIR


  • FeatureIcon
    Made in the UK
  • FeatureIcon
    WARNING WARNING This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

See other products by Air Arms

See manual
See schematics
Item details
S401D17SX05APT [PY-2281-4570]
MPR Precision Biathlon air rifle, poplar stock, & adj. buttpad and cheekpiece. 5-shot repeater.

Sold & shipped by Pyramyd AIR


Air Arms S400 Biathlon Price

$1,599.99

Caliber.177 (4.5mm)
Max Velocity564 fpsMeasured with 7.7-grain ammo
Muzzle Energy5.15 ft/lbs

This item is not eligible for coupon discounts

The Air Arms Precision Biathlon rifle delivers world-class accuracy. Air Arms is known for making extremely accurate guns, and the Biathlon is no exception. This air rifle is dressed in a unique white poplar stock with adjustable black cheekpiece and rubber buttpad. If you don't shoot competitively and just want a very accurate repeater, install a compact scope on the 11mm dovetail. Because the dovetail is very short, you'll need to use a 2-piece mount.

Keep your extra rotary clips in the slots of the right-hand forearm. Load them before each match so there's no fumbling when the pressure is on!

Helpful resources:




  • Air Arms S400 Biathlon air rifle
  • Precharged pneumatic (200 bar max fill pressure)
  • Bolt-action
  • 5-shot repeater (self-indexing rotary clip)
  • Removable air reservoir
  • Match sights: globe front accepts inserts, rear diopter (not included)
  • 11mm dovetail
  • 5-way adjustable match trigger
  • Lothar Walther barrel
  • White poplar stock
  • Cheekpiece adjusts vertically and horizontally
  • Buttpad adjusts vertically
  • 4 rotary clips fit in slots in right-hand forearm
  • Beautiful deep bluing
  • Stock is flawlessly executed
  • 29.875" between front & rear sight positions
  • 10.25" long accessory rail
  • 12.12" to 12.50" length of pull (LOP)
  • 5.15 ft-lbs.
  • Includes owner's manual, 7 Allen keys, four 5-shot clips, fill adapter & spanner (to remove reservoir)

* Rear Diopter sight not included

See other products by Air Arms

See manual
See schematics
Item details
S401D17SX05APT [PY-2281-4570]
MPR Precision Biathlon air rifle, poplar stock, & adj. buttpad and cheekpiece. 5-shot repeater.

Sold & shipped by Pyramyd AIR


Air Arms S400 Biathlon Price

$1,599.99

Caliber.177 (4.5mm)
Max Velocity564 fpsMeasured with 7.7-grain ammo
Muzzle Energy5.15 ft/lbs

Air Arms S400 Biathlon Specs

Max Velocity564 fpsMeasured with 7.7-grain ammo
Overall Length41.0"
ButtplateAdjustable
FunctionRepeater
Weight6.99 lbs
Scopeable11mm dovetail
Safetynone
Suggested forCompetition
Caliber.177 (4.5mm)
Muzzle Energy5.15 ft/lbs
Loudness2-Low-Medium
Barrel Length20.5"
Shot Capacity5
BarrelRifled
Front SightGlobe w/Aperture Inserts
Rear Sightnone
TriggerFive-way adjustable match
ActionBolt-action
PowerplantPre-charged pneumatic
Max Shots per Fill120
Body TypeRifle
Operating Pressure2900 PSI / 200 BAR

Air Arms S400 Biathlon Reviews

Rating 5.05.0 (3 reviews)
5 star
4 star
3 star
2 star
1 star
3 reviews

Create an online review

Customer images

Sort by Date: Newest–Oldest

Rating 5.05.0 5.0

Rating 4.04.0 4.0

Rating 5.05.0 5.0

Things I liked:

Accurate and fun to shoot.

Things I would have changed:

Expensive. For the money should have included Butt Spacers and Front Aperture Inserts. Would have also been nice if a prone position sling was offered.

What others should know:

For target practice order the 10 pellet clip and you will not have to reload as often.

Rating 5.05.0 5.0

Rating 5.05.0 5.0

Rating 5.05.0 5.0

Things I liked:

What a great rifle. The accuracy is incredible. The weight and adjustable features are terrific. A truly great air rifle

Things I would have changed:

I am not convinced on the number of shots per fill, I find that I am between two and three hundred before I need to refill. Other than that a great piece of gear.

Rating 5.05.0 5.0

Rating 5.05.0 5.0

Rating 5.05.0 5.0

Things I liked:

There are so many things about this gun to like it is hard to start. The balance and the feel of this gun is unreal and the adjustments to make it fit your body, enhance the experience. The trigger is as smooth as silk and pulls the pellet right to the target. It seems like it shoots forever on a single charge. It is very nice to have 20 rounds to shoot off without having to reach into a pellet container. It is quite and doesn't let your neighbors know what you are up to in your backyard. The gun instills confidence in you and when you miss you know that it is your technique to blame and not the gun. After a quick sight in, I was doing dime size clusters of 20 rounds quicker than you could say Air Arms, because of the 4 magazines. When you look at it there is no question that this is a quality rifle.

What others should know:

You will need a few adapters to be able to use a hand pump with this gun. It seems to take longer to pump up by hand then my other PCPs. My son is left handed and doesn't seem bothered by the right handed stock when he shoots it.

Got a question or answer?
Log in to participate

  • X-Concealment from USA asked:

    Is the rear sight really not included? If it's really not come with a rear sight, Where do I purchase a Air arms rear sight to go with the front sight that came with the rifle?

    • X-Concealment from USA answered:

      I just received my S400 Biathlon from Pyramydair a few days ago, and both front sight and rear sight are included, there are 4 front sights inserts also included. The rear sight is not as pictured, it doesn't have the extended eye piece, but the sights are very well made, more than sufficient for this rifle, I didn't see any reason to upgrade them.

    • Adam from USA answered:

      The rear sight is not included. You may want to try Champions Choice to find a rear diopter sight.

  • David from USA asked:

    Can this rifle be fired without a pellet in the chamber?

    • Steve from USA asked:

      Can this rifle be dry-fired safely?

      • X-Concealment from USA answered:

        There is no dryfire practice function build in. So can't do practice dryfire if that's what you want to know.

      • Mark from USA answered:

        Yes

    + Load More

    To fill your PCP gun:
    1.Pick a source of air shown at right
    2.If an adapter is needed, one will be shown
    3.Add both to your cart to get hooked up

    Air Arms S400 Biathlon Air Rifle with DIN connector (5M)

    To start over click reset

    Airgun Academy Episode 38 - PCP Filling Systems
    10-for-$10 Test
    Add to Cart

    10-for-$10 Test

    $10.00
    20-for-$20 Mount/Zero Scope
    Add to Cart

    20-for-$20 Mount/Zero Scope

    $20.00
    PCP 24 Hour
    Add to Cart

    PCP 24 Hour Leak Test

    $10.00
    1-Year Service Contract
    Add to Cart

    1-Year Service Contract

    $59.99
    2-Year Service Contract
    Add to Cart

    2-Year Service Contract

    $119.99

    Compatible with Air Arms S400 Biathlon Air Rifle

    Buy With Confidence

    Get FREE shipping on qualifying orders! Any order $150+ with a shipping address in the contiguous US will receive the option for free ground shipping on items sold & shipped by Pyramyd AIR during checkout. Certain restrictions apply.

    Free shipping may not be combined with a coupon unless stated otherwise.

    View Shipping Info

    Want More?

    Join Our Email List for News and Deals!

    Join the Pyramyd AIR mailing list: Our e-mails are filled with new products, deals, sneak peeks, tips and tricks, contests and more - sign up today!

    Text JOIN to 91256 and get $10 OFF Your Next $50+ Order!

    * By providing your number above, you agree to receive recurring autodialed marketing text msgs (e.g. cart reminders) to the mobile number used at opt-in from Pyramyd AIR on 91256. Reply with birthday MM/DD/YYYY to verify legal age of 18+ in order to receive texts. Consent is not a condition of purchase. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy.