Complex sentence: The Pistola Ametralladora Patria is a submachine gun of Argentine origin and is a close copy of the Ingram MAC-10 and features a cooling jacket/barrel extension much like the South African BXP.
Split into simpler sentences: The Pistola Ametralladora Patria is a submachine gun of Argentine origin. It is a close copy of the Ingram MAC-10 and features a cooling jacket/barrel extension much like the South African BXP.