Our P320 80% Frame Completion Video will walk you through completing the MPU-1 80% Frame.
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Inserting the Frame into the Jig - 0:32
Bending the Frame Rails - 1:55
Drilling the Holes - 3:47
Opening up the Trigger Slot - 5:48
Opening up the Safety Lever Slot - 6:55
Cutting the Slide Rails - 8:35
Deburring the Frame - 13:15