P320 80% Parts Kit Install

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P320 80% Parts Kit Install   P320 80% Parts Kit Install   Our P320 80% Parts Kit Install Video will walk you through installing your lower parts kit into your completed MUP-1 80% Frame. This is a follow-on video to our…

P320 80% Frame Completion

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P320 80% Frame Completion   P320 80% Frame Completion Our P320 80% Frame Completion Video will walk you through completing the MUP-1 80% Frame.   If you find our videos helpful please consider supporting us for free by…

Sig P320 80% Frame Rail Calculator

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Sig P320 80% Frame Rail Calculator   In doing the Sig P320 80% Build I had to do some math to cut the frame rails down to size. Yes the top plate of the jig got me close but I still needed to remove some additional metal. I created…