The PT-1 is a telescopic stock that is installed in place of the standard model on left-side folding AK variants similar to the AK 103, 104, 105, 74M and PP "Vityaz". The mechanism has a 100mm total adjustment lenght with 5mm adjustment intervals and an adjustable cheek-rest with 25mm total adjustment height with 5mm intervals. The stock is able to fold and lock to the left (like the standart model) at any adjusted lenght, even with the B-13 platform installed on the sidemount. Includes parts for removing the rubber cheek-pad and cheek-rest.