The Pistola Ametralladora Patria is a submachine gun of Argentine origin. The weapon is a close copy of the Ingram MAC-10 and features a cooling jacket/barrel extension much like the South African BXP. The P.TO. country was developed for the major of the Air Force Argentina, Luis Ricardo Dávila, and protected by national Patent n° 220494/5/6/7 on 20/08/1980.