Inside the P320

Published on August 20, 2025
Duration: 8:32

This guide details the safe disassembly procedure for the SIG SAUER P320, emphasizing its unique safety features that prevent accidental discharge. It also outlines the five sequential mechanical actions required for the P320 to fire, as explained by Phil Strader, VP of Consumer Affairs at SIG SAUER. The video highlights the advanced manufacturing processes and redundant safety mechanisms built into the P320.

Quick Summary

The SIG SAUER P320 features a safe disassembly process that requires magazine removal and the slide locked back, without a trigger pull. Its firing sequence involves five sequential mechanical actions: trigger pull, captive safety lever rotation, striker safety lock disengagement, sear rotation, and striker release, supported by redundant safeties like secondary sear notches and a disconnector.

Chapters

  1. 00:00Introduction & Manufacturing
  2. 00:34Safe Disassembly Procedure
  3. 01:46The Five Steps to Discharge
  4. 03:20Step 1: Trigger and Trigger Bar
  5. 04:04Step 2: Captive Safety Lever
  6. 04:31Step 3: Striker Safety Lock
  7. 05:16Step 4: Sear Rotation
  8. 05:45Step 5: Striker Release
  9. 06:14Redundant Safety Mechanisms
  10. 07:41Disconnector Safety

Frequently Asked Questions

How is the SIG SAUER P320 disassembled safely?

Safe disassembly of the P320 requires the magazine to be removed and the slide locked to the rear. Crucially, it does not require a trigger pull, enhancing safety during the process.

What are the five sequential steps for the P320 to fire?

The P320 fires through five sequential mechanical actions: trigger pull, captive safety lever rotation, striker safety lock disengagement, sear rotation, and finally, striker release.

What redundant safety features does the P320 have?

The P320 includes a secondary sear notch to catch the striker if dropped and a striker safety lock that acts as a third redundant safety measure, ensuring reliable operation and safety.

What prevents the P320 from firing when the slide is not fully in battery?

A mechanical disconnector prevents the P320 from firing when the slide is out of battery. It achieves this by pushing the trigger bar down, disengaging it from the sear mechanism.

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