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Sig Sauer P365 Short Stroke Flat Trigger Upgrade

Sig Sauer P365 Short Stroke Flat Trigger Upgrade - CNC Machined SOLID 4140 Steel w/ Max Over-Travel Adjustment (200033115888888)

4.78 stars, based on 159 reviews
Sig Sauer P365 Short Stroke Flat Trigger Precision CNC Machined 5th Axis Sig Sauer P365 Accessories to correct Sig Sauer P365 Problems with Factory MIM Parts.  Replace Factory MIM (Metal Injection Molded) Parts with Solid...

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I installed this trigger along with the spring kit on my P365 SAS over two successive evenings. I was a bit frightened to disassemble the FCU; however, with M*CARBO’s videos, it turned out to be a piece of cake … almost.



After reassembling the FCU, when I pulled the trigger, nothing happened! I called M*CARBO support; we backed out the set screw on the trigger just a tad; and my SAS successfully dry fired. Kudos to Support!!!



The instructions on the trigger installation say to insert the set screw just far enough so that 2 threads are showing; however, on my particular pistol or on this specific trigger, that was 1 thread too many!



Before installing these new springs and trigger, my trigger weight average after 5 pulls was 5lbs. 13.4oz. Now it’s 3lbs. 5.7oz. … and I haven’t even taken it to the range to break in the springs yet!



Bravo to M*CARBO for all their emails and help on the phone!!!
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I installed the trigger upgrade along with the spring kit... sig is not glock however after several hours on the installation video and 1 call to tech, I was able to get it working...great quality as always as well as top notch service!

Be advised that it is a 4 on a 1-5 for difficulty.

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Great trigger, really makes the pull more consistent and shorter!

365 flat trigger

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Awesome trigger well worth it.. challenging install



Install tip: maybe consider installing the take down lever first all the way at the 7’o’clock position drop in then turn. Then install the trigger and pin . Followed by the rest of the components. This is the only way i was able to make it work as there are no videos addressing this exact part. That said, SigGuy youtube video will help along the way .

365 Trigger in my XL

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Trigger went in smoothly, coupled with the spring kit. Much lighter trigger pull!

One complication I had was the manual safety which I previously installed. Had to refresh on that one and made reassembly slightly more complex.

Recommend a COMPLETE video on a 365 or XL showing trigger install plus spring kit working around the manual safety.

That would be nice. I will order a trigger for my 365 and do this all over again.

Off to the range!

365x flat trigger

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Trigger is amazing with spring kit, so smooth and reset is like butter!

365x flat trigger

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Trigger is amazing with spring kit, so smooth and reset is like butter!

365xl flat trigger and spring kit.

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Was easy to install, followed the install video and had no problems installing it quickly. I took it to the range and it feels good and shoots perfectly. Thank you, I highly recommend Mcarbo products.
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380 P365

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I installed this kit on my 380. Love how short the reset is and how smooth the trigger is now. Thank you very much
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A Must Have

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I liked the P365, but it was not great to shoot due to their angled flat trigger design. The Mcarbo flat trigger made me love the P365. Smoother and much more enjoyable to shoot; feels solid.

A pain to install but worth it!

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So, I had no experience with installing a trigger when I went into this. I watched the video they sent 2-3 times before attempting. I took my time and things were going well until I reached the reinstallation of the takedown lever. I’m guessing it was due to tolerances from the factory but though the video made it look simple, no matter how I tried it it would not fit flush. I tried for hours. Watched that part of the video countless more times thinking I’d missed something. To no avail. I started scouting the internet for other videos and finally found one demonstrating an alternate way to do it due to this very reason. It involved only partially assembling the alternate side and holding everything more or less in place while you insert the take down lever. And then and only then fitting things together flush. After that it was fairly smooth sailing. After 6 hrs I got the thing together and did a function test. All seemed well. The trigger seemed great with my dry fire rounds but the true test was the range. Took it the next day, and well I be damned, it was night and day difference. Way less pre travel, crisp brack and super short audible reset. I was a good shot before but now I’m a great shot. Groups were just amazing. I put 12 rounds in a 3-4 inch group on a hostage takers head on a hostage target at 15 yards with my carry from stand and fire with no brace. That’s pretty damn awesome. Honestly couldn’t stop smiling shooting it. My girl who isn’t the best shot was noticeably improved with it too. Do yourself a favor and buy this. Don’t think about it just do it. (though if I went back and time I would have paid the gun smith to do it to forgo the headache). That being said I have a much more intimate knowledge with my guns FCU. So maybe I still would have done it myself.
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Absolutely worth every penny

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I originally bought an OEM flat trigger and the MCARBO spring kit for my 365. The trigger was garbage as there was entirely too much slack before you hit the wall, but was pretty clean after that. This new trigger took up 85-90% of that play. I hate having lots of slack in my pistol triggers and this solved that. It does feel (just my opinion, not backed by science) there is a little more play after you hit the wall with this trigger versus the OEM one; but the wall is almost instant. Having this trigger with the trigger kit really made this pistol a lot better. I did have some light strikes with the MCARBO striker spring installed, but that very well could have been the ammo. Overall, solid trigger with a great feel and pull. Definitely pairs well with the spring kit. My only "negative" for the trigger is the set screw installs at a really wonky angle and it was somewhat difficult to really dial it in. I got it as close to the point of not firing as I could, but there isn't much of a gap when you get down to that level between the gun firing or not. Not really a negative, but it was interesting that was the first time I dealt with such a finicky set screw. I have several other pistols that have set screws and was able to really dial it in down to the razor's edge. Didn't seem like I was able to do that with this trigger.

Absolutely Worth It!!

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I ordered the MCarbo P365 Short Stroke Flat Trigger to replace my Sig OEM flat trigger after reading recommendations from multiple online forums. The trigger was on back order at the time I ordered it, so I had to wait a few months, but once my order was processed and shipped out I received the new trigger and spring kit in only 3 days time so I was very happy with that! The quality in this trigger is undeniable! I received several installation video links included in the shipment status emails I received from MCarbo. As recommended, I watched the video once so I could see the whole installation process from start to finish. I then watched the video a second time as I went through the trigger and spring kit installation. The tolerances on the trigger are tight enough that it took a bit of patience getting everything to fit together properly, but once assembled I can say this is a whole new pistol! I have shorter stubby fingers and the angle of the OEM flat trigger made the trigger length so long it was hard to get proper finger placement on the trigger without having to fish for it. The shorter take up on the MCarbo trigger took care of that. I get perfect finger placement on the trigger every time now. With the adjustment of the overtravel set screw, now the trigger pull and reset feels almost identical to the Apex tactical trigger I have installed on my Glock 19. I am extremely happy with this purchase!!

Adjustable over travel is sweet!

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I have two of these triggers; one for the X Macro and one for the XL which I also put in an X Macro frame. I love that you can adjust the over travel screw to zero over travel. Follow the instructions. I actually screw the set screw in a little more, then when installing it, the trigger won’t fire. Then I can back the screw out until it fires, then a half turn more out to ensure it will fire. This leaves no over travel at all. It’s amazing and to say it’s an improvement over the stock trigger is such an understatement. There is no comparison as this trigger is how it should have been done to begin with. It certainly improves accuracy with the short travel of this trigger. I frequently practice 50 yard shots at 6 and 8” steel plates. With the stock trigger I could hit maybe 3 out of 10 shots. With this trigger, I’m hitting an average 7 out of 10 shots at that range on those little targets. Don’t waste your money on the other triggers. I’ve been shooting for over 50 years now and I’m impressed with this one. That doesn’t happen often with triggers on carry guns and for this price!?!? It’s like putting a competition trigger on your carry gun.

Almost as good as the Grayguns adjustable trigger

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The trigger installs and works well. It is nice to have the over-travel adjustment. The stroke doesn't look or feel any less than my Grayguns triggers. To be really great it should have a take-up adjustment .

Amazing little piece

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Okay, I have to say that I am seriously impressed with the quality of this product. It is so much slimmer then the Sig official flat trigger. From the picture you question how tough it is. It is actually really really solid and I am extremely impressed with it. Pretty and solid. Be careful while adjusting the screw. Small changes make a massive difference.