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.
MG34 Ejection Port Cover Assembly
MG34 Front Sight Base
M31 Semi Auto Home Built Receiver Kit
MG34 Ejector Retaining Pin
MG34 Semi Auto Small Parts Kit
M31 Semi Auto Charging Block
MG34 Upper Feed Block
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