1. The end of the barrel was threaded, and this thread was used to screw on a blast-reduction tube of a length that depended on the installation requirements: One of the outstanding features of this weapon is the method of solving blast tube difficulties, a troublesome problem in all installations of aircraft cannon in fighter aircraft.

대부분 ShKAS와 다른 설계점은 가스 실린더가 ShVAK에서는 총열 아래에 있는데, 이것은 더 작게, 민첩하게 만들어준다.(giving it a more compact assembly) The end of the barrel was threaded, and this thread was used to screw on a blast-reduction tube of a length that depended on the installation requirements: 한 가지 주목할 점이 있다면, 이 무기는 어려운 추진관 방식으로 해결해서, 전투기 내에 설치된 곳에서는 문제를 좀 발생시켰다.