Inside the P320 Part 3

Published on October 8, 2025
Duration: 9:50

This video, part three of the 'Inside the P320' series, focuses on identifying normal wear on key internal components of the SIG Sauer P320, including the disconnector, sear, striker, and striker safety lock. Phil Strader, a P320 certified armorer, compares heavily used parts from a rental fleet firearm with approximately 75,000 rounds to brand new parts, demonstrating what to expect and what to look for during routine inspections. He emphasizes that most observed wear is normal and does not necessitate part replacement, but advises consulting an armorer for any concerns or if the firearm malfunctions.

Quick Summary

Normal wear on SIG P320 internal parts like the sear, striker, and disconnector typically involves minor surface marks from mechanical interaction. A P320 with 75,000 rounds showed minimal wear, indicating durability. Consult a certified armorer if wear appears excessive or if the firearm malfunctions.

Frequently Asked Questions

What are the key internal parts of the SIG P320 that should be inspected for wear?

The key internal parts of the SIG P320 to inspect for wear include the disconnector, sear, striker, and striker safety lock. These components are subject to mechanical stress during firing and cycling.

How much wear is considered normal on SIG P320 internal parts?

Normal wear on SIG P320 internal parts typically involves slight surface marks, particularly on the sear from the striker leg, and the disconnector from slide movement. Significant chips, cracks, or deformation are not considered normal.

What is the recommended maintenance schedule for checking P320 parts wear?

According to SIG armorer recommendations, firearms should be checked for parts wear every 3 years or approximately 5,000 rounds. Regular cleaning and lubrication also help mitigate excessive wear.

When should I consult a certified SIG armorer about my P320's parts wear?

You should consult a certified SIG armorer if you suspect any part wear is abnormal, if you notice chips or damage, or if the firearm is not functioning correctly. They can provide expert assessment and perform necessary repairs.

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