M31 Semi Auto Receiver Assembly instructions and BATF Approval Letter
This packet includes the steps necessary to build your own M31 semi auto receiver. The BATF letter included lays out the rules for manufacturing and proper marking. Please look at PN M31S-GNPT-XX09-BKXX-RCKT for a complete diagram.
*This Package is for the receiver only, not the complete rifle.
M31 Suomi 36 Round Stick Magazine
ASR Trigger Assembly
M31 Trigger Bar
MG34 Firing Pin Nut Latch
MG34 Bolt Cam - Out of Stock
M31 SEMI AUTO BOLT ASSEMBLY
M31 Y-Series Striker
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