Complex sentence: Only Australia and Canada used this variant, as the UK and New Zealand used Bren light machine guns converted to fire the 7.62 × 51mm NATO cartridge.Canadian C1s issued to naval and army personnel were also capable of automatic fire.
Split into simpler sentences: Only Australia and Canada used this variant, as the UK and New Zealand used Bren light machine guns converted to fire the 7.62 × 51mm NATO cartridge. Some Canadian C1s issued to naval personnel were also capable of automatic fire.