I was looking to get it to around 5lbs and so this is exactly what I was looking for. The video provided by MCarbo is excellent. I’m completely sold and will do many more of these projects. Overall this has been a wonderful experience and I would recommend them to anyone. After installing the MCarbo spring kit (without any polishing at all) the trigger reduced down to a 5lb 0oz trigger pull. Super excited to go range test it. Most importantly, glad to by US made product by our beloved and respected veterans! The instructional video was awesome. I’m a fairly new gun owner and I easily installed the P365 trigger spring kit. My old trigger springs gave me a 7lb 3oz trigger pull. I just installed the trigger springs on my Sig P365. The video instruction was perfect, took me a little longer than Chris though. The Sig P365 trigger spring works very well on the Sig P365 XL just as they advertised. The toughest part was the sear spring, but stayed with it and it finally fell in with the sear. Trigger still feels the same and the trigger pull gauge still reads the same. Did not take long at all. Sig Sauer P365 Trigger Spring Kit is an M*CARBO ASTM Spec Spring that will offer a perfect trigger pull reduction with an unlimited drop test rating (3", 6", 9" & 12"+). The trigger feels way better than stock!! Install went great and paired with the Sig OEM flat trigger, the P365 is really sweet. Recently received this trigger spring kit and followed the excellent mcarbo installation video to install it. Shot it a few more rounds and then last night installed the Mcarbo spring kit. Range Tested and Approved: The Sig Sauer P365 Trigger Spring Kit has been tested repeatedly with numerous brands of ammunition to ensure reliable operation and safety. Im not sure if the polishing before hand or i just got a good one but the Mcarbo kit did nothing for my P365. The trigger feels much lighter and smoother. The owner obviously knows his craft and loves what he does. About 30 minutes.