M31 Semi Auto Charging Block
The M31 Charging Block connects to the stock charging handle but is taller for better engagement into the Semi auto bolt.
M31 Firing Pin Retainer
M31Trigger Only Assembly
M31 Receiver Center Section semi auto
M31 End Cap SEMI AUTO, SPRING GUIDE SHORTENED.
M31 Charging Handle Return Spring
M31 Small Parts Kit
M31 Trigger Bar
M31 Safety Spring
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