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M31 Semi Auto Receiver Assembly instructions and BATF Approval Letter

Price: $15.00

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.

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