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 Charging Handle Return Spring
M31 Receiver Center Section semi auto
M31 Shroud Shim
M31 Trigger Spring
M31 Rear Sight Assembly
M31Trigger Only Assembly
M31 Lower Receiver Section Machined
M31 Semi Auto Receiver Assembly instructions and BATF Approval Letter
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