Sig Sauer P365 Trigger Spring Kit – Install Guide & Trigger Pull Overview

Описание: In this video, we walk through the installation of the M*CARBO Trigger Spring Kit for the Sig Sauer P365 family of pistols. When installed correctly, this kit is designed to refine trigger feel and can significantly reduce perceived trigger pull, while maintaining safe, semi-automatic operation. The kit is compatible with the P365, P365 .380, P365 SAS, and P365 XL.

We begin by confirming the firearm is clear, reviewing the parts and tools needed, and measuring the factory trigger pull. From there, we field strip the pistol and disassemble the slide to replace the striker spring and striker block safety spring. Next, we remove the metal fire control unit from the grip frame and work through the internal components—sear spring, trigger return spring, disconnector, and related parts. After reassembly, we perform a full function check and measure the modified trigger pull so you can compare before and after.

This guide is intended for responsible P365 owners who want a clearer understanding of how the fire control unit and striker system work and how to verify proper function after installing a trigger spring kit. Actual trigger pull reduction and overall feel will vary between individual pistols, ammunition, and user setup. Any polishing or adjustments should be minimal, focused only on proper contact surfaces, and must not remove or defeat any safety features.

TIMECODES:
Intro - 00:00
Parts and Tools Needed - 00:58
Firearm Clear - 01:18
Factory Trigger Pull - 01:26
Field Strip - 01:45
Slide Disassembly - 01:58
Trigger Spring Kit Overview - 03:27
Striker Block Safety Spring Comparison - 03:57
Installing New Striker Block Safety Spring - 04:28
Replacing Striker Spring - 05:06
Reinsert the Striker Assembly into the Slide - 07:14
Striker Function Check - 07:54
Slide Reassembly - 08:14
Remove Metal Receiver from Frame - 08:44
Metal Receiver Overview - 10:00
Removing Safety Lever - 13:11
Takedown Safety Lever Bar Orientation - 14:16
Removing Takedown Safety Lever - 14:40
Removing Trigger Return Spring - 16:04
Removing Disconnector - 18:09
Removing Sear and Sear Spring - 18:32
Sear Overview / Orientation - 20:23
M*CARBO Sear Spring vs Factory Sear Spring - 20:57
Receiver Parts Overview - 21:29
Reinstalling the Sear - 21:59
Reinstalling the Takedown Lever - 25:59
Reinstalling Safety Lever - 30:38
Reinstalling Disconnector - 32:37
Reinstalling Trigger Return Spring - 33:34
Metal Receiver Review - 35:06
Insert Receiver back into Frame - 35:56
Rotating Takedown Lever - 36:55
Reattach Slide - 37:10
Function Check - 37:23
Modified Trigger Pull - 37:37
Wrap-Up / Outro - 37:50

Safety & Responsibility:
Always verify that your Sig Sauer P365 is completely unloaded before beginning any work. Remove the magazine, lock the slide open, and visually and physically inspect the chamber to confirm it is clear. Keep the muzzle pointed in a safe direction at all times and follow standard firearm safety rules. Work in a safe, organized environment and use the proper tools to avoid damage to the fire control unit or slide components.

After installing or changing any trigger, striker, sear, or safety-related springs, perform thorough function checks to ensure proper reset, drop safety behavior, and overall operation. Test the pistol at the range with appropriate ammunition to confirm safe and reliable performance. If you are unsure about any part of the disassembly, installation, or reassembly process, or do not feel fully confident performing it yourself, consult a qualified gunsmith.

This content is for educational and informational purposes only and is intended for responsible, legally authorized firearm owners in accordance with all applicable local, state, and federal laws.

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