Complex sentence: The Model 70, often dubbed the "rifleman's rifle", was produced continuously at New Haven (except during WWII) until 2006, and production has resumed at FN Herstal's plant in Columbia, South Carolina.
Split into simpler sentences: The Model 70, often dubbed the "rifleman's rifle", was produced continuously at New Haven (except during WWII) until 2006. Production was subsequently resumed at FN Herstal's plant in Columbia, South Carolina.