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Sako ARG

The Sako ARG (lit. 'Arctic Rifle Generation') is a Finnish family of assault and battle rifles designed and manufactured by Sako.[2]

Background

Previously known as the K22 ,[3] the ARG was designed along with the Finnish Defence Forces[4] and the Swedish Armed Forces.[5]

Design

The ARG is based on the AR-10 and AR-15 design by Eugene Stoner[6] but features a proprietary short-stroke gas piston system,[7] similar to Heckler & Koch HK416 and other piston versions of AR-15-type assault rifles.

Variants

ARG branding

ARG 40 GP

Assault rifle variant featuring short-stroke gas piston.

ARG 40 DI

Variant featuring direct impingent operation.

  • ARG S 40 MPK - Semi-auto 5.56 mm rifle made for the National Defence Training Association of Finland, equipped with a 16 inch barrel.[8]
  • ARG S 40 Reserviläinen - Semi-auto 5.56 mm rifle made for the Finnish civilian market.[9]

ARG 50 GP

Designated marksman rifle variant.

ARG 40 GP

Assault rifle variant featuring short-stroke gas piston.

ARG 40 DI

Variant featuring direct impingent operation.

  • ARG S 40 MPK - Semi-auto 5.56 mm rifle made for the National Defence Training Association of Finland, equipped with a 16 inch barrel.[8]
  • ARG S 40 Reserviläinen - Semi-auto 5.56 mm rifle made for the Finnish civilian market.[9]

ARG 50 GP

Designated marksman rifle variant.

Military variants

Sako M23

Finnish Defence Forces precision rifle variants.

  • 7.62 KIV 23 – designated marksman rifle
  • 7.62 TKIV 23 – sniper rifle

Automatkarbin 24

Swedish Armed Forces variants.[10][11]

  • Ak 24A - 5.56 mm, 11.5 inch barrel assault rifle
  • Ak 24B - 5.56 mm, 14.5 inch barrel assault rifle
  • Ak 25 - 7.62 mm battle rifle

Sako M23

Finnish Defence Forces precision rifle variants.

  • 7.62 KIV 23 – designated marksman rifle
  • 7.62 TKIV 23 – sniper rifle

Automatkarbin 24

Swedish Armed Forces variants.[10][11]

  • Ak 24A - 5.56 mm, 11.5 inch barrel assault rifle
  • Ak 24B - 5.56 mm, 14.5 inch barrel assault rifle
  • Ak 25 - 7.62 mm battle rifle

Users

References

  1. Kiväärijärjestelmä M23 Finnish Defence Forces, retrieved 4 February 2026^
  2. New rifle system to supplement infantry capability maavoimat.fi, Finnish Defence Forces, 21 December 2021, retrieved 21 December 2021^
  3. Jukka Harju. Suomi ja Ruotsi suunnittelevat asekauppaa: Tarkoitus on hankkia yhdessä suuri määrä uusia tarkkuuskivääreitä Helsingin Sanomat, Sanoma Media Finland, 18 October 2021, retrieved 22 December 2021^
  4. Leevi Larkovuo. Uuden kiväärijärjestelmän kehitystyö alkaa ruotuvaki.fi, Finnish Defence Forces, 26 May 2020, retrieved 21 December 2021^
  5. Jouko Juonala. Puolustusvoimien perinteinen RK 62 jää kohta historiaan – korvaaja voi olla kevyempi Ilta-Sanomat, Sanoma Media Finland, 19 October 2021, retrieved 21 December 2021^
  6. New rifle system to supplement infantry capability maavoimat.fi, Finnish Defence Forces, 21 December 2021, retrieved 21 December 2021^
  7. Mika Mäenpää. Muutamia kysyttyjä faktoja Kiväärijärjestelmä M23:sta 23 December 2021, retrieved 17 November 2022^
  8. SAKO ARG S 40 – MPK -kivääri luovutettiin MPK:n koulutuskäyttöön National Defence Training Association of Finland, 31 July 2024, retrieved 4 February 2026^
  9. Valtteri Patrikainen. TESTISSÄ – Sako ARG S 40 Reserviläinen Rekyyli, Outdoor Media Oy, 20 May 2025, retrieved 4 February 2026^
  10. Nya Eldhandvapen Swedish Defence Materiel Administration, retrieved 2 December 2023^
  11. Eldhandvapen Swedish Defence Materiel Administration, 27 March 2023, retrieved 27 March 2023^
  12. New rifle system to supplement infantry capability maavoimat.fi, Finnish Defence Forces, 21 December 2021, retrieved 21 December 2021^
  13. POTD: Sweden's New Automatic Carbine 24 The Firearm Blog, 12 June 2024, retrieved 22 June 2024^