STG-556

STG-556
TypeAssault rifle/Semi-automatic rifle
Place of originUnited States
Production history
DesignerSteyr Arms
ManufacturerMicrotech Small Arms Research
Produced2007-15
No. built
  • 1000 (Limited edition STG-556)
  • 232 (STG-556 rifles with an 18.5" heavy barrel)
  • 500 (STG-556 Gebirgsjäger)
VariantsSee Variants
Specifications
Mass
  • Empty: 3.62 kg (8.0 lb)
Length
  • 26 in (660.4 mm)
  • 27 in (685.8 mm)
  • 31 in (787.4 mm)
Barrel length
  • 14 in (355.6 mm)
  • 16 in (406.4 mm)
  • 18.5 in (469.9 mm) (only for .300 Blackout)
  • 20 in (508.0 mm)
Cartridge
ActionGas-operated, rotating bolt, short piston drive
Feed system
  • 10/20/30/42-round detachable box magazine
  • 30-round magazine (7.62/5.45 variants)
  • STANAG magazine (XM17-E4 only)
Sights
  • 1.5x optical sight
  • Can have various scopes/sights installed via picatinny railing
References[1][2][3][4]

The STG-556 is a Steyr AUG clone formerly manufactured by Microtech Small Arms Research (MSAR).[5] It was available in civilian and military/law enforcement (select-fire) variants.[6]

  1. ^ "Microtech Small Arms Research - STG-556 Sporting Rifle". www.msarinc.com. Archived from the original on 10 February 2010. Retrieved 30 June 2022.
  2. ^ "Archived copy" (PDF). www.msarinc.com. Archived from the original (PDF) on 9 December 2008. Retrieved 30 June 2022.{{cite web}}: CS1 maint: archived copy as title (link)
  3. ^ "Msar | STG-556". msarinc.com. Archived from the original on 6 February 2011. Retrieved 30 June 2022.
  4. ^ Choat, Chris (March 2008). "Microtech's STG-556 An Exclusive First Look". The Small Arms Review. 11 (6): 43–50.
  5. ^ "MSAR STG-556: Bullpup You'll Recognize". Archived from the original on 2023-05-09.
  6. ^ "MSAR STG-556 rifle". 27 October 2010.