Sig P320 Questions

[sava]

Good afternoon gents,

I've been doing a lot of research on the Sig P320 line of pistols and am contemplating switching to it as my new duty gun. The STI may be going back in the safe if I decide to switch platforms.

I shot a P320 Nitron earlier this week and was impressed with the accuracy, ergonomics, and overall feel of the pistol.

I'm looking to get some feedback from the group as to what you guys have heard or experienced with these pistols. Research shows that Safariland makes holsters for them with lights and RDS, so that's a huge benefit.

Our agency will probably be authorizing pistol mounted RDS in the near future so I was looking at the 2019 P320 Vtac or Nitron RX models. Any of you guys know if the slides can be recut for a Trijicon RMR?

The other option is to just buy a normal P320 and then have the slide cut for an RMR and upgrade with an X5 grip module.

https://www.sigsauer.com/store/p320-rx-full-size.html

https://www.sigsauer.com/store/p320-x-vtac.html

[DonaldT24]

My department issues a p320 and I love it. I left it stock aside from a surefire x300. I wouldn’t want to have to worry about the battery life on an RMR failing should I ever get involved in an OIS.

I have seen other officers buy the x5 grip module and use it for work. Keep in mind, you also have to buy the 21 round mags as well (Sold separate for approximately $50) to fit the magwell if you go that route. Safariland also makes a good level three holster that works best with a surefire x300 instead of the streamlight TLR1 if you decide to mount a light.

[1911su16b870]

Running a 320RX carry as my off-duty. RMR/red-dots on pistols are mind-opening especially if you do some dry-fire work with them.

The 320 has one of the best, crisp-est striker triggers.

You need a low cut holster to accommodate the Romeo like the GLS series.

The Romeo-1 1632 battery lasts from 2-4 months. I have already ordered/back-ordered an Aimpoint ACRO which should end the whole battery issue as Aimpoint's optics can be left on for a long time.

FWIW My VTAC would not reliably function using our Winclean range ammo.

[Bobby Ricigliano]

I bought the M17 variant of the Sig 320 and I like it a lot. It feels like a lot of gun for >$600 and has a very crisp short reset trigger. As a lefty I appreciate the ability to swap the mag release button and that the other controls are ambi. I fed ball and hollow points through it and it feeds everything effortlessly and is as accurate as anything else out there.

I did notice two minor quirks, FYI. The amount of effort needed to manually cycle the slide seems to "vary" for lack of a better word. Even before ever firing it, manually cycling was usually easy and smooth. But occasionally, there would be some additional resistance, as if the slide and frame would bind a little while retracting the slide. Not enough to affect function, but enough to require higher than normal strength to completely retract the slide. I looked for any rub points or obvious signs of fitment problems and there were none.

The other quirk is potentially a more serious issue, but can be eliminated by always ensuring proper function checks upon reassembly. After field stripping, the pistol can be completely reassembled in a manner which inadvertently results in a dead trigger.

I don't have the technical knowledge to precisely identify what causes this, but I have seen similar reports on other boards. It is critical to ensure that all of the reassembly steps are completed in the correct order and all parts are lined up exactly where they should be.

Most firearms cannot be reassembled improperly without an obvious clue, but this one can be. Still, I still like the pistol a lot and I do recommend it.

[1911su16b870]

Interesting. Did not recall them mentioning it at the armorer class I took last September. You can not rotate the take down lever down unless the magazine is removed. The trigger bar return spring can come off if you torque it and that would cause a dead trigger? Will look at the tubes and try to figure it out.

[sava]

Surefire X300U is standard on all my duty guns so that would also go on the Sig.

Thanks for the feedback.

[Bobby Ricigliano]

Interesting. Did not recall them mentioning it at the armorer class I took last September. You can not rotate the take down lever down unless the magazine is removed. The trigger bar return spring can come off if you torque it and that would cause a dead trigger? Will look at the tubes and try to figure it out.

Perhaps, I cannot confirm the exact reason. I have nothing to gain by posting fud, as I bought the pistol and really like it. In fact, I bought the commemorative M17 too. IIRC, after the "dead trigger" reassembly, the magazine could only be inserted part way. Your post caused me to recall that magazine issue. Could be just user error....

[BajaJames83]

Dead trigger is caused by not engaging the slide lock after assembly or resets the sear.

[micro911]

I had one. The feel of the grip and grip angle was not right or me. I shot it for one session and sold it.

[1911su16b870]

Perhaps, I cannot confirm the exact reason. I have nothing to gain by posting fud, as I bought the pistol and really like it. In fact, I bought the commemorative M17 too. IIRC, after the "dead trigger" reassembly, the magazine could only be inserted part way. Your post caused me to recall that magazine issue. Could be just user error....

Well I think it was that...turning the takedown lever rotates a bar which will not allow you to do so with a magazine inserted as it blocks the bar. It also disconnects the trigger so you have a dead trigger. Not being able to insert the magazine confirms this is the issue.

I like the X-grip assemblies. They have a little diffenent "point in" angle, but I have worked it in to my presentation.

[uspcompact45]

[1911su16b870]

Looking forward to receiving my ACRO from Aimpoint, that on top of a P320 X-Carry should be purrrr-fect!

[sava]

[uspcompact45]

How are the P320’s working out for you guys? As a whole are you guys having good reliability? Guys happy with the weapons platform?


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Yes, most of the officers like it (we have some hardcore 1911 fans). The ability to switch frame sizes was a benefit in terms of ergonomics for officers. I really like the trigger. We are authorized to use personal firearms as long as it gets approved. From my observation, a lot of the officers who previously were using their personal (mostly glock) eventually transitioned to the department p320.

I haven’t seen any reliability issues using the p320 .40. However, we only had the firearms for a little over a year.

Like I said, I’m going wait for the updated p320rx since it’s a great firearm.

[9mmContagion]

I love the 320, especially the x-series lines. Hands down blows my Glocks out of the water. The versatility of the line gives it that extra notch, and the trigger is much better. I don’t think you’ll be disappointed, unless you’re comparing it to the STI...