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P320 Broken Trigger Bar

This is a discussion on P320 Broken Trigger Bar within the P250 & P320 Modular Pistols forums, part of the SIG Sauer Pistols category; Our agency is currently testing the Sig P320 to possibly replace our aging P220 duty pistols. During testing, we had a trigger bar break at ...


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P250 & P320 Modular Pistols P250, P320, and Exchange kits

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Old 02-24-2016, 08:43 AM   #1
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P320 Broken Trigger Bar

Our agency is currently testing the Sig P320 to possibly replace our aging P220 duty pistols. During testing, we had a trigger bar break at the 2000 round mark.
Sig advised that this is the first report of such an issue.

Has anyone else had this issue?
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Old 02-24-2016, 08:48 AM   #2
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I have never ever heard of a trigger bar breaking.
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Old 02-24-2016, 08:52 AM   #3
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Stay with you'r P220s no real better reason i know of to change.
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Old 02-24-2016, 08:53 AM   #4
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Trigger bar or trigger bar spring? Both would be very unusual but I've never heard of a trigger bar breaking.
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Old 02-24-2016, 09:00 AM   #5
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i can say with good certainty thousands and thousands and thousands of rounds around this forum have been fired from the P320 and no one has reported this issue.

only issues I've seen are:

tripper slap/pinch/pain
a handful of failure to extract

besides that, rare to find issues
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Old 02-24-2016, 10:01 AM   #6
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If you look at the P320's actual trigger bar...it's quite substantial compared to many trigger-bars in other guns, especially the thin, multi-bend ones that go around a magazine to a hammer at the rear. I would think that it would have to be made of some extremely cheap and brittle metal to actually break, so it seems very odd that it would. Maybe something connected to it, or as another mentioned the spring?


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Old 02-24-2016, 10:31 AM   #7
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Trigger Bar

Here is a photo of the broken trigger bar
Attached Images
File Type: jpg IMG_0043 a.jpg (93.4 KB, 527 views)
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Old 02-24-2016, 10:40 AM   #8
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Wow....that must have been a crappy part/batch. That's the last thing I would have expected to break on a P320. All it's doing is pulling a sear linkage. It's not even bending around a magazine and it's only a few inches long.

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Old 02-24-2016, 12:01 PM   #9
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Good thing for SIG that particular one didn't go to the US Army as a test pistol for their modular handgun system trial.

I have not heard of that part failing either.
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Old 02-25-2016, 02:31 AM   #10
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Quote:
Originally Posted by tremington View Post
Here is a photo of the broken trigger bar

Are you guys testing with +p or +p+ ammo at all? I mean it shouldn't really matter, but thats a tough part to snap...

How did failure accur ?
While squeezing and round firing or when ejecting and catching new round?
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Old 02-25-2016, 03:34 AM   #11
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Did it break during firing?
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Old 02-25-2016, 03:48 AM   #12
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The spring looks like it's bent to me also.
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Old 02-25-2016, 05:57 AM   #13
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Quote:
Originally Posted by tremington View Post
Our agency is currently testing the Sig P320 to possibly replace our aging P220 duty pistols. During testing, we had a trigger bar break at the 2000 round mark.
Sig advised that this is the first report of such an issue.

Has anyone else had this issue?
Where you guys located at. We have several 320's in service with our agency, individual officers pistols, but not failures of any kind. I would be interested as well, I have never seen a trigger bar fail. My 320 has in excess of 6 k rounds through it some of which have been +P rounds and no failures.




TXPO
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Old 02-25-2016, 07:02 AM   #14
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We have fired Winchester Ranger 230 gr JHP+P ammo as well as Winchester and Federal 230 gr ball ammo in the test pistols. The failure occurred during slow fire, trigger recovery (sear re-set) with the ball ammo.

I have been unable to find any other occurrence such as this; it appears that it was a fluke part failure.
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Old 02-25-2016, 02:13 PM   #15
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I've got several thousand rounds through mine that's used for competition. I've seen many of them got tens of thousands of rounds with no issues. I've pushed mine to almost two thousand rounds before cleaning.

Was the FCU ever disassembled? The part really has little force applied. Odd that it would even break in that manner.

It was a fluke.
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Last edited by 154; 02-25-2016 at 02:16 PM.
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