Complex sentence: Plans to order additional quantities of the AR-10 rifle were stymied after the Netherlands embargoed further shipments of the rifle to Portugal; paratroopers deploying to Africa in later years were subsequently issued a collapsible stock version of the German Heckler & Koch G3 rifle.
Split into simpler sentences: Plans to order additional quantities of the AR-10 rifle were stymied after the Netherlands embargoed further shipments of the rifle to Portugal. Paratroopers deploying to Africa in later years were subsequently issued a collapsible stock version of the German Heckler & Koch G3 rifle.