M31 Small Parts Kit
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This kit includes all of the springs and the firing pin for the M31 Semi-Auto.
M31Trigger Only Assembly
M31 Lower Receiver Section Machined
M2HB 50 Cal Semi-Auto Sear
MG34 SA Bolt Assembly
M31 Semi Auto Home Built Receiver Kit
M31 Semi-Auto Assembled Receiver (FFL Required)
MG34 Ejection Port Cover Assembly
M31 Shroud Shim
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