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 80% Receiver Tube
M31 Buffer Spring Cup
M31 Suomi 36 Round Stick Magazine
M31 Lower Receiver Section Machined
M31 SA Trigger Group Assembly - Service Work
M31 Semi-Auto Assembled Receiver (FFL Required)
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