M31 Semi Auto Home Built Receiver Kit
Approximately Ships in 8 weeks
This parts set is the for the manufacturing of a home built semi auto M31's receiver. These parts are available in this set, and are also sold individually.
The assembly, machining, and welding of these parts constitutes the manufacturing of a firearm and the BATF Letter provided with this set must be followed.
M31 SA Trigger Group Assembly - Service Work
M31 Hammer Spring
M31Pin, Firing Pin Cross PIN QTY 2
M31 Rear Sight Assembly
M31 Y-Series Striker
M31 Semi Auto Receiver Assembly instructions and BATF Approval Letter
M31 Small Parts Kit
M31 Firing Pin
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