The PST-7 utilizes a three chamber, forward venting, monolithic design to reduce the mach pressure produced when firing the host weapon system. This design helps manage the cyclic rate of the host weapon system, while the forward exhaust ports help prevent gas blow back in the operators face. The PST-7 is protected by a high-temp Cerakote coating, features the PST HUB Adapter, and includes a 7.62 PST-QD Flash Hider.