Thread: suppressor pressure

The suppressor traps the gas and generates a much longer time/pressure curve. This shows up in gas-operated semi-autos and causes extraction problems in many of them. There are two solutions. One is to open up the suppressor bore which will lower the pressure and the effectiveness of the suppressor. The other is to install an adjustable gas system that can be tuned to suit. Note that .308's etc produce a much greater gas volume than .223's and the problem is worse in the higher case capacity cartridges.