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P320 Trigger Arm Question

334 Views 5 Replies 4 Participants Last post by  SpartanGoat
Good morning.

Just picked up a brand new 320XC-9-BXR3-PRO from my local GS. I took the FCU out to switch triggers and noticed the trigger arm doesn’t look like any stock 320 trigger arm I’ve ever seen. It looks similar to the Apex trigger arm.

Just curious if (a) Sig switched to a new arm, (b) this is specific to the professional series, or (c) is something terribly wrong here.

The arm looks like a regular stock Sig trigger arm except in the rear portion that’s in the red rectangle. The arm looks just like the pictured Apex but it has no branding on it.

Thanks for any info.



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1 - 6 of 6 Posts
It's the arm style used in manual safety models. I think they are also used in the Legions. I guess Sig figured out there was no reason to have both.

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Interesting, I’ve never owned a safety model or Legion series. Thank you for this info.


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Yeah, its supposed to improve the trigger pull. My axg pro also has it.
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Yep, manual safety type, at least when they had BOTH. Sig probably wouldn't even tell you it's for a manual safety version now.
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Lol since it works on both, why have two different ones? Makes no sense lol. I think they finally figured it out and condensed to one.
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