Sig MPX K 9mm PCC Review

Published on October 31, 2024
Duration: 6:36

This review of the Sig MPX K 9mm PCC covers its features, performance, and shooting impressions. The presenter highlights the clear Lancer magazines, the Aimpoint Duty RDS optic, and a Raptor charging handle. Velocity tests with Blazer 115 grain ammunition out of the 4.5-inch barrel are presented, along with accuracy at 100 yards and a trigger pull weight measurement.

Quick Summary

The Sig MPX K 9mm PCC utilizes a closed bolt gas piston system that vents gases forward, promoting a cleaner operation and a softer shooting feel. Velocity tests with Blazer 115 grain ammo from its 4.5-inch barrel yielded around 1115-1123 FPS, and its Timney trigger breaks crisply at about 4.5 pounds.

Chapters

  1. 00:07Introduction: Sig MPX K
  2. 00:15Lancer Magazines
  3. 00:24Firearm Overview & Testing Setup
  4. 00:45Iron Sights & Optics
  5. 00:50Raptor Charging Handle
  6. 01:04Gas Piston System Explained
  7. 01:20MLOK System & Accessories
  8. 01:30Folding Stock & Portability
  9. 01:40Velocity Testing Setup
  10. 01:50Velocity Test: Blazer 115 Grain
  11. 02:26Rotary Bolt System
  12. 02:3425 Yard Shooting
  13. 02:50Trigger Test: Timney Trigger
  14. 03:56Aimpoint Duty RDS Performance
  15. 04:09100 Yard Accuracy Test Setup
  16. 04:33100 Yard Accuracy Results
  17. 05:14Optic View Demonstration
  18. 05:32More Shooting
  19. 05:48Final Thoughts on MPX K
  20. 06:10Viewer Engagement: Favorite PCCs

Frequently Asked Questions

What is the gas system on the Sig MPX K and how does it affect shooting?

The Sig MPX K features a closed bolt gas piston system where gases are expelled forward. This design contributes to a cleaner burning operation and a softer shooting experience for the user.

What kind of velocity can be expected from the Sig MPX K with 9mm ammunition?

During testing with Blazer 115 grain 9mm ammunition out of its 4.5-inch barrel, the Sig MPX K achieved velocities between 1115 and 1123 feet per second.

How accurate is the Sig MPX K at 100 yards?

When sighted in at 25 yards, the Sig MPX K was observed to shoot slightly low at 100 yards, indicating a need for adjustment for longer-range accuracy.

What is the trigger pull weight on the Sig MPX K with the Timney trigger?

The Timney trigger installed on the Sig MPX K was measured to have a pull weight of approximately 4.5 pounds, described as crisp and a significant improvement.

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