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.
ASR Buffer Spring
ASR Match Trigger Assembly
MG34 Firing Pin Release Pin
M2HB 50 Cal Semi-Auto Trigger Bar Assembly
TNW Standard billet lower receiver
MG34 Firing Pin Spring Retainer
MG34 Lower Feed Block Complete Assembly
MG34 Firing Pin Nut Latch
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