p320 80 parts kit
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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% Completion Video

P320 80 Parts Kit – Learn More

We have the most complete coverage of the P320 80% build process on the Internet. Make sure you visit our P320 80% Frame Completion and P320 80% Range Testing videos. Also, visit our Sig P320 80% Frame Rail Calculator to help you trim the frame rails and our P320 80% Build Adventure article to read about the problems that we ran into during this build. 

Our videos and articles will help you complete this build and show you some of the areas that can be problematic. The P320 80% build is not hard to complete and we consider it an intermediate skill project. 


If you would like to know more about the tools that we used on the Sig P320 videos visit https://trb.fyi/tools-used-in-the-p320-disassembly-and-reassembly-videos and visit our troubleshooting guides at https://trb.fyi/troubleshooting/ while you are at our page.

Other P320 Videos that are not 80% builds

If you are not interested in building the P320 80% pistol but would like to know more about this firearm, visit our P320 Field Strip, Slide Disassembly, Slide Reassembly, FCU Disassembly/reassembly, as well as our Fire Control Unit Removal and Grip Module videos.


Video Index: 

Assembling the Safety Lever Housing – 0:32

Installing the Safety Lever Housing – 1:03

Installing the Safety Lifter and Sear – 2:19

Installing the Takedown Safety Lever – 5:00

Installing the Trigger Bar and Trigger – 6:09

Installing the Slide Catch Lever – 7:17

Does it work? – 8:19


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