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 End Cap SEMI AUTO, SPRING GUIDE SHORTENED.
MG34 SA Sear Assembly
MG34 Front sight
M31 Charging Handle Return Spring
RESET BRACKET FOR SEMI-AUTO M2
M31Pin, Firing Pin Cross PIN QTY 2
MG34 Safety Lever
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