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 Hammer Spring
M31 Small Parts Kit
M31 Firing Pin Bushing
M31 Rear Sight Screw
M31 FIRING PIN RETURN SPRING
M31 SEMI AUTO BOLT ASSEMBLY
M31 Buffer Spring Cup
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