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 Firing Pin
MG34 Safety Lever Detent Piece
M31 FIRING PIN RETURN SPRING
MG34 Belt Transport Lever- Right-Hand Feed
MG34 Safety Lever
MG34 Belt Lever
TNW Standard rail billet upper and lower receiver combo
M31 SEMI AUTO BOLT ASSEMBLY
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