FN UK

5.56x45mm

NATO cartridges

FN Herstal, the original designer of SS109 cartridge

FN Herstal is the original designer of the military 5.56x45mm SS109 cartridge, which was adopted by NATO as the second official standardized calibre in 1980.

Ammunition types

• SS109 (Ball)
• L110 (Tracer)
• Blank

Uses

• Carbines (e.g. FN SCAR®-SC)
• Assault rifles (e.g. FN SCAR®-L)
• Light support weapons (e.g. FN MINIMI® 5.56)

Key benefits

  • SS109 round, designed by FN Herstal and adopted as the 5.56 NATO standard

  • Regular 5.56 round, adapted to live fire training and standard duty use