Complex sentence: It features an air-cooled, quickly detachable barrel, and a dual feed system which allows the user to use either 30-round AK-47 top-inserted box magazines or non-disintegrating PK-type steel belts.
Split into simpler sentences: It features an air-cooled, quickly detachable barrel. The dual feed system allows the user to use either 30-round AK-47 top-inserted box magazines or non-disintegrating PK-type steel belts.