Sig P365 FCU

Sig P365 FCU – Disassembly and reassembly

Our P365 FCU video will show you how I disassemble and reassemble the FCU. Although there are some slight differences between the standard and XL version of the pistol, the FCUs are essentially the same with the exception of the flat trigger on the XL.



Although the concept of the FCU is borrowed from the P320, this one is completely different in terms of disassembly and reassembly.

Sig P365 FCU – Additional Content


Our P365 vs. P365XL – First shot impressions article goes a little more in-depth of our impressions on this pistol


If you would like to learn more about the gunsmithing tools that we used in this video, visit our P365 gunsmithing – Tools used in our videos article at…ed-in-our-videos/

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Sig P365 FCU – Video Index:

Removing the slide catch – 0:26

Removing the trigger bar spring – 0:47

Removing the disconnector – 1:20

Removing the safety lever – 1:44

Removing the takedown safety – 2:16

Removing the takedown lever – 2:55

Removing the trigger bar and trigger – 3:17

Removing the sear and sear spring – 4:21

Removing the receiver retention ping spring and slide catch lever spring – 5:10

Installing the receiver retention ping spring and slide catch lever spring – 6:05

Installing the sear and sear spring – 7:04

Installing  the trigger bar and trigger – 9:38

Installing the take down lever and take town safety – 10:43

Installing the safety lever – 11:48

Installing the disconnector – 12:31

Installing the trigger bar spring – 13:07

Installing the slide catch – 13:57

Additional content – 15:20

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