M31 Charging Handle Return Spring
This M31 Charging Handle Return Spring keeps the cocking handle assembly in the forward position after cocking the rifle.
M31 Semi Auto Charging Block
M31 Semi Auto Home Built Receiver Kit
M31 Rear Sight Screw
M31 Trigger Spring
M31 Shroud Shim
M31Trigger Only Assembly
M31 Semi Auto Receiver Assembly instructions and BATF Approval Letter
M31 Suomi 36 Round Stick Magazine
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