Sig Sauer P365 Trigger Spring Kit

Had the trigger and spring kit installed at my local gun shop. Have to say that there is a noticeable upgrade from stock on my P365 with Radian Ramjet/Afterburner with the DPM light recoil system. Be aware though that you may experience light primer strikes and failure to fire (FTF) if using ammo with harder primers. This is not due to the MCarbo trigger, but rather the spring kit. Ran flawlessly with Federal Ammo but have had many many FTF using S&B and Maxxtech 115 gr 9mm ammo. Do some forum searches and you will see I'm not alone. Stick with better ammo and you'll love it, or maybe plan to use the stock 5lb striker spring. I'm still using the 4 lb. spring that came with the kit and am searching for other ammo to try. I was totally unaware of this issue. Not knocking MCarbo per se, but more so hoping to help others that are unaware.

Installed with the short stroke flat trigger and absolutely love the combo. Felt amazing at the range and improved my grouping. Significantly lighter feel on the trigger pull and travel distance. Easy install with the video but if you have the p365 x macro with manual safety install will be slightly different from video because of the manual safety but still very simple and straight forward I'd recommend to anyone looking into trigger upgrades.

Took the great SIG SAUER P365 trigger pull from great to awesome! Nice lite trigger pull crisp break good reset. Never took the FCU apart before, but was fairly easy after watching the video on mcarbo.com.

 

Definitely feel the lighter trigger pull but the fcs spring was a lot harder to put together than they say. Need to redo video, although you say you'll slow down the put back together process, you don't and camera angles make it hard to see to follow. I consider m myself an experienced gun builder and I had trouble with the fcs.

I installed this spring kit with the M*CARBO trigger and it has significant less trigger pull and smooth. I haven’t tried it in the range and I am concerned about light strikes. But, judging by the reviews, I think it should be okay. Impressive Customer Service.

The springs are fine. Unless you are an octopus, you don't have enough hands to fit them. The Sig P365 has a high number of minute parts that all leap off the fire control mechanism as you handle it. It took me several hours to eventually get it back together. Have 40 years engineering experience and wondered at times if I would end up buying a replacement FCM. The striker body is plastic with a bendable tab to release it. The aft end of the body is a tight fit in the sliding rear cover, requiring considerable force to release it, whilst mangling the back of the striker body out of shape. If you don't have a high degree of engineering common sense and appreciation coupled with infinite patience, take it to a gun smith. If you do decide to do it, the long, detailed video is absolutely essential. Be sure to photograph from every angle before starting, and at each major stage.

I replaced the springs when I did the flat trigger upgrade but there was only one trigger at my local gun shop so I did the springs on both guns. The factory trigger actually became halfway decent with this kit. So if you only have 20 bucks you can't go wrong purchasing this spring kit. But I do have to recommend you get the Flat Trigger as well but that's for another review.

I'm not sure why anyone would want a lighter spring on the striker pin, so I didn't install this. The other two springs were installed and worked find.