SIG SAUER Lever - Gas Valve

SIG SAUER Lever - Gas Valve. 56x45mm NATO .300 AAC Blackout .223 Remington Gun Make: SIG Sauer Gun Model: SIG Sauer MCX Package Contents: SIG SAUER Lever Gas Valve SIG SAUER Infinite Guarantee What firearm models does the manufacturer say SIG SAUER Lever Gas Valve is compatible with? The manufacturer says that SIG SAUER Lever Gas Valve is compatible with SIG Sauer MCXSIG SAUER 2400901-R: Lever - Gas Valve