SIG 551 Gas Regulator Valve
Swiss SIG 551 2-position gas regulator valve is used to control the gas flow for cycling and operation. The 2 positions include normal setting and "adverse conditions".
SIG 551 adjustable gas valves, along with other items of the 55x platform, are cross compatible, and can be used for both a SIG 551 and 556.
This is perfect to replace a worn, lost, or damaged part, or it can be modified to make a 4-position gas regulator for off and suppressed use.
All SIG 551 parts are becoming increasingly unavailable, so grab one now before they are gone!
Condition: New Take Off