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P320 cleaning

This is a discussion on P320 cleaning within the P250 & P320 Modular Pistols forums, part of the SIG Sauer Pistols category; I installed the PELT trigger and followed the video GG has. During the process I lubed the areas they recommend, and even a thin coat ...


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

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Old 03-20-2017, 12:08 PM   #1
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P320 cleaning

I installed the PELT trigger and followed the video GG has. During the process I lubed the areas they recommend, and even a thin coat a couple of other spots, I thought might contact.

Then after the range trip I broke down the pistol, and cleaned with a mild degreaser, including the FCU. Afterwards I relized, the degreaser propbably took the grease I had put in off. I pulled the trigger out and greased those locations again.

My question is do most people do this each time you clean the gun, or leave the FCU alone and only occasionally clean the FCU? The PELT trigger spring is much more difficult to remove than the stock spring was, and If I am removing and installing it once a week, it's not going to last long (probably will lose it).

I could use a CLP and clean the FCU which would leave lubricant behind, but I would rather not shoot it that wet. I have been just using a touch of either tw25b or weapon shield grease smeared to a thin film and mostly wiped off.
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Old 03-20-2017, 12:29 PM   #2
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Steved13,

I only have one question - how dirty was the gun after your range time? I have to admit I do clean the barrel and wipe things down after a session but I've not noticed much, if any crud after 200 rounds. I normally run a Rem oil patch through the barrel until it comes out clean, dry the barrel and lightly coat it inside and out because I never know when I'll be able to get out again.

Suggest you take at look at this post: http://http://sigtalk.com/p250-p320-...0-pistols.html
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Old 03-20-2017, 12:37 PM   #3
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I take out the FCU and clean it after each range session. It doesn't get nearly as dirty as the barrel and slide assembly, though, so it doesn't take as much effort to clean it. I'll put on a very thin layer of oil every few cleanins - Mil-Comm MC 2500 - wipe on, let it sit a few minutes and then wipe of with a clean patch leaving a very thin layer (like you, I don't like to leave too much lube in there).
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Old 03-20-2017, 12:58 PM   #4
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I will remove the FCU from the frame each time I clean, but I may not take it completely down each time. It depends on how much shooting I did that day.

I was a big TW25 and MC2500 user and had been using the stuff for years. Use the oil on the barrel, lug surfaces, and slide, and TW25 for the slide rails, trigger pivot points, and trigger bar assemblies. I recently switched to Slip 2000 oil and grease as it is quite a bit thicker than the Mil-Com stuff, and work a bit better with the 320's FCU mechanicals. The trigger is smoother with the Slip product compared to the Mil-Com, at least IMO.

TXPO
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Old 03-20-2017, 01:09 PM   #5
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This video pretty much lays it out from Sig's professional shooter. Not sure if this is the same as Abberdog posted as that link would not open for me. In general, he cleans incredibly infrequently, and I have heard the same from many successful benchrest shooters. I always tended to be on the compulsive side, but plan to clean my 320s as he suggests.
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Old 03-20-2017, 01:23 PM   #6
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Do you pull the trigger out, to lube the pivot points, or just lube what you can and leave it in?

Now that I think about it, Everything I've seen says just give it the once over, and nothing about pulling the trigger or trigger bar and such. My OCD id just getting the better of me I think.
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Old 03-20-2017, 01:57 PM   #7
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Quote:
Originally Posted by steved13 View Post
Do you pull the trigger out, to lube the pivot points, or just lube what you can and leave it in?

Now that I think about it, Everything I've seen says just give it the once over, and nothing about pulling the trigger or trigger bar and such. My OCD id just getting the better of me I think.
I've never broken down the FCU for cleaning. I do get in to the nooks and crannies as best I can using tightly wound swabs (i.e. that don't fray), but I've never felt compelled to go further than that. In fact, if memory serves the owners manual says that one shouldn't break the gun down any further than that, other than an armorer or gunsmith. If that is the case, then I would think Sig never intended owners to take it apart further to keep the firearm clean.
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Old 03-20-2017, 02:32 PM   #8
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Thanks for the input, everyone. Just lubing the points that GG recommends during the trigger swap video had me thinking too much. I had seen the above video before and that is how I had done it before and will do it from now on.

I pulled the striker assembly out like the video above and had a job getting it back in. The little spring moved behind the safety lever (not sure I am using the proper nomenclature) somehow, and the assembly wouldn't slide in all the way and was binding (as you would assume) but I couldn't see why, right away. Finally the tiny spring fell out and then I figured it out, and with a little patience and common sense got it back in. Was a little nerve racking until I figured it out though.

Cleaning this gun is pretty easy and feels complete. Most other guns you don't feel like you could get it as clean. Too many hidden areas, but the P320 lets you access a lot more very easily.
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Old 03-20-2017, 04:00 PM   #9
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I spray mine out with Hornady's Gun cleaner and lube.
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Old 03-27-2017, 01:45 AM   #10
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I clean my P320 after each range trip, including the FCU but have never removed the trigger for cleaning. I have only 1,672 rounds fired but have had no issues.
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