SIG P320 caliber exchange kit on upgraded lower

SIGforum

This topic can be found at:
https://sigforum.com/eve/forums/a/tpc/f/430601935/m/1190005634

January 20, 2018, 02:32 PM

az4783054

SIG P320 caliber exchange kit on upgraded lower

I'm looking for a .357sig caliber exchange kit for my upgraded P320c 9mm. The kits are more available than previously. However when I ask gunbroker vendor/sellers if their kits have been upgraded, they suggest I contact SIG and ask their customer service. I wish SIG would indicate on their kits somehow that they have been milled for the disconnect.

What should I expect if I put a non upgraded slide assembly on an upgraded lower? Will it defeat the upgrade?

January 20, 2018, 03:32 PM

ceptor781

A non upgraded slide on an upgraded FCU will leave you with a paper weight. The disconnector will be engaged leaving a dead trigger.

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January 20, 2018, 06:07 PM

az4783054

quote:
Originally posted by ceptor781:
A non upgraded slide on an upgraded FCU will leave you with a paper weight. The disconnector will be engaged leaving a dead trigger.

I already have a paperweight but that's what I feared. Thanks for confirming.