MANUFACTURER – Izhevsk Mechanical Plant, Izhevsk, Russia
STATUS – In use
SERVICE – Soviet Spetznaz, KGB, Russian Special Forces and Intelligence units
127 db reduced
Suppressor 32mm dia
The rear mount slips over the end of the barrel, and the interrupted threads permit tightening the suppressor onto the PB with 1/4 turn. The non-suppressed average was 158.9 dB in 2001 and 158.2 dB in 2004. That gives a level of 127.5 dB for the suppressed version, giving a net reduction of 31.4 dB First round “pop” +1.5 db