r/P320

For those that want to add a manual safety to your old non safety P320s, but don't want to cut the FCU. Now there's a new manual safety kit from Sig that is pretty much drop in and doesn't require a cut.

it does require the manual safety style trigger bar though, but you can easily add one of those too if you don't have one. That's what i had to add.

It works by using a special plate to hold the detent of the safety instead of a cut in the FCU. I tried to capture the plate in the pictures.

All the tools I used to install are in the picture. Basically a flat head and an old lollipop. The lollipop stem was used as a slave pin.

I used Sig Mechanics youtube video on how to install a manual safety to give me the gist of it. Just gotta add the extra step of adding the plate. Hopefully you can see where the plate goes in the pictures.

Unfortunately its out of stock already but keep an eye out for restock if interested. Link to the safety:

https://www.sigsauer.com/p320-manual-safety-parts-kit.html?avad=201839\_f4e72f5ed&avad\_ttl=1787109422

When I hit the slide release the first feed tends to hit the feed ramp and push projectile further into casing. Cleaned it, pulled mag springs further, tried different ammo. Still can’t get an answer on why it’s not feeding correctly.

The picture depicts the round not chambering and it being caught in the feed ramp.

Leupold DeltaPoint Pro / Streamlight TLR-7X

Was going to purchase a couple for my
New to me P320 I got. I can’t find any reviews on them.

I had the slide slide on my circa 2020 P320 cut for an optic but the existing sights are too low for cowitness. Any recommendations for cowitness sights? I looking for lower 1/5 (minimal cowitness) for the Osight C optic.

TL;DR: Transformed a stock ZEV P320 X-Compact into a fully custom build, but only after OpticsPlanet dropped the ball and dragged out the process. Lee from Norsso saved the project by personally sorting out the slide order. Mated the Norsso pBentham slide and E-Port barrel with an Icarus FDE frame, Apex curved trigger, Holosun 507c-GR, and Herrington +5 extension. Untested at the range, but functions clean. Cop or not?

I'm addicted! Been working on this one on and off for a few years, put it on pause, and now it’s finally finished. Would you pick this up if you saw it online?
This was a long bake and trial and error for me… a lil step away from the cookie-cutter P320 scene. No shade. The base started as a ZEV X-Compact. My first change was to add the Apex trigger kit due to all the 320 chatter.
My biggest battle was with OpticsPlanet (the drama was real) just trying to get the right slide. But seeing the Anodized Matte Black Norsso pBentham slide—and the matching Matte Black Norsso e-port barrel—finally mate with the FDE Icarus (imo my favorite) made the wait worth it to look at until I shoot!
Also, shout out to Lee from Norsso—if you haven’t worked with him, you should. Pure joy talking with him and getting incorrect shipments from OP sorted out right.

Build Details :
Base: ZEV P320 X-Compact
Frame: Icarus Precision ACE 320 X-Compact (FDE/Bronze)
Slide: Norsso pBentham Compact (Anodized Matte Black)
Barrel: Norsso E-Port 3.9 (Matte Black Match Grade)
Trigger: Apex Tactical Advanced Kit (Refined Apex curve)
Optic: Holosun 507c-GR X2 (The Green Boy)
Recoil: DPM P320 Compact 3.9 Soft Recoil Spring System
Base Pad: Herrington Arms +5 Mag Extension
Range Report: Haven’t pulled the trigger yet. Functions right!

Verdict: buy or no?

Added a light and wrapped the optic and light.

Hello,

Just got an amazing deal at my local trading in an old P938 for a used (near mint it looks) P320. I was hoping some of yall might be able to help me with a few questions as I’m completely new to the platform.

Firstly

Should I do the upgrade program?

I checked on dog’s website and I saw I was eligible for a free upgrade, but I have no idea how worth that is if I plan to get a different slide and trigger at some point anyway you know?

Secondly

What sort of optics would I be able to put on here? Info online was hard to come by for the specific cut. Couple of cuts on Sig’s site looked similar but with a few differences. I don’t know much about pistol optics so help here would be awesome.

Thirdly

Should I get a ported slide and barrel or just get a slide and a threaded barrel?

I don’t plan on CCing this pistol as I have a FN Reflex for that, but I do want to see what kind of piece I could build.

Pretty sure this pistol is pretty old as it’s eligible for the free upgrade but I’m not exactly sure.

Any and all info would be greatly appreciated. Thank you!

Spoiler Alert 🚨 125k pistols and zero issues!

Full report here:

https://soldiersystems.net/2026/08/07/us-air-force-supplemental-inspection-of-m18-modular-handguns-found-zero-evidence-of-conditions-which-would-allow-uncommanded-discharge/

To start off with I wanna say that I’ve never modified a sig before, and have only ever done slight modifications to other weapons, but yesterday I got my Texas triggers reaper frt and was ecstatic to put it on, but after assembly I’d come to find that the actual frt component fits too snug in the slot, so I’d disassembled the gun a second time and it seems the space is slightly too snug for it to fit right as it should just glide in place. Do yall have any tips on what I could/should do to get it working? Thanks

Started with a very good used x compact from gun broker.

Found a like new TXG grip module (also gun broker)

PMM Threaded barrel and comp kit

Gray guns trigger, competition spring kit, 2-3 pound pull (not tested)

Romeo RS Pro multi reticle green dot

Armory Craft Recoil Spring Tuning Kit.

---looking for suggestions on which spring to use. Will be firing for the first time in the next few days.

I will add an x300 or something similar.

I worked, saved, and searched for great deals on pre-owned parts and managed to keep this under a grand. I went into this not really knowing wtf I was doing and now I'm really proud of the results.

The SRO over hangs the extraction port slightly and has caused a few stove pipes so i plan on swapping an RCR at some point. Otherwise this thing shoots great.