After checking out a Systema AR-style PTW, MOTO picks up the Systema TW5 or the MP5 PTW to shoot with at the range for this Penguins Tactical Video... "This time, I borrowed the favorite guns of several people and tried out Systema's Professional Training Weapon (PTW), commonly known as 'Trepon'. This time, I borrowed not only AR but also TW5 (MP5 PTW). Special Thanks!