Sig Fuse Part 2: Did They Fix It?

Published on August 22, 2024
Duration: 26:21

This video details a comparative test of heat dissipation between the Sig P365 Fuse, X-Macro, and X-Macro Legion. After sending the Fuse back to Sig for feed ramp polishing, the reviewer conducted extensive firing drills to measure temperature increases. While the Fuse's feed ramp issues were addressed, the test revealed significant heat buildup in the Fuse's slide compared to the other models, potentially due to its thinner profile and aggressive serrations.

Quick Summary

The Sig P365 Fuse's slide can reach temperatures as high as 140°F during sustained firing due to its thinner profile and aggressive serrations, making it significantly hotter than other P365 variants like the X-Macro. While Sig polished the feed ramp to fix feeding issues, the rapid heat buildup is considered a potential dealbreaker for intensive training.

Chapters

  1. 00:18Introduction & Recap
  2. 00:47Sig's Response & Repair Notes
  3. 01:45Gunsmith Comments & Sig's Explanation
  4. 02:30Heat Testing Setup & Initial Readings
  5. 04:43First Build Drill Results
  6. 05:52Second Build Drill Results
  7. 07:05Third Build Drill Results
  8. 08:04Fourth Build Drill Results
  9. 10:15Sustained Firing & Temperature Checks
  10. 11:46Final Build Drill Round
  11. 13:56Post-Drill Temperature Readings
  12. 16:41Analysis of Heat Differences
  13. 16:50Testing Extended Magazines
  14. 17:31Extended Mag Stoppage & Temperature
  15. 19:03Second Extended Mag Test
  16. 19:53Extreme Heat Readings (140°F)
  17. 20:53Final Thoughts & Deal Breaker
  18. 21:56Review of Sig's Service & Design Concerns
  19. 22:31Heat as a Deal Breaker & Future Use
  20. 23:26Addressing Criticisms & Sig Ownership
  21. 24:07Conclusion & Holster Availability
  22. 24:47Bonus Footage: Aftermarket Support Ideas

Frequently Asked Questions

Did Sig fix the feed ramp issues on the P365 Fuse?

Yes, after sending the Sig P365 Fuse back to Sig Sauer, the feed ramp was polished. This repair resolved the previous failures to feed experienced with all three magazines, indicating the mechanical issue was successfully addressed.

Why does the Sig P365 Fuse get so hot compared to other models?

The Sig P365 Fuse's design, particularly its thinner slide profile due to deep-cut serrations, leads to faster heat accumulation. Sig suggests this is inherent to its lighter mass, but the reviewer notes other P365 variants don't exhibit the same extreme heat.

What temperatures did the Sig P365 Fuse reach during testing?

During sustained firing drills and with extended magazines, the Sig P365 Fuse's slide reached temperatures as high as 140°F, making it very hot to touch and potentially uncomfortable for prolonged handling or defensive scenarios.

Is the heat from the Sig P365 Fuse a dealbreaker?

For the reviewer, the extreme heat generated by the Sig P365 Fuse is a dealbreaker for intensive training or defensive use, as the slide becomes too hot to comfortably or safely handle after significant rounds. However, for less demanding use, it might be manageable.

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