M31 Semi Auto Charging Block
The M31 Charging Block connects to the stock charging handle but is taller for better engagement into the Semi auto bolt.
M31 Semi-Auto Assembled Receiver (FFL Required)
M31 Y-Series Striker
M31 FIRING PIN RETURN SPRING
M31 Rear Sight Screw
M31Pin, Firing Pin Cross PIN QTY 2
M31 SEMI AUTO BOLT ASSEMBLY
M31Trigger Only Assembly
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