The Ultimate Sig Sauer MPX First Shots: Gen 3 8" 9mm PCC

Published on April 9, 2022
Duration: 16:06

The Sig Sauer MPX Gen 3 8" 9mm PCC is a premium pistol caliber carbine praised for its accuracy and soft shooting characteristics, attributed to its short-stroke piston system. While expensive with an MSRP of $2,000-$2,500 and costly magazines, it offers AR-style ergonomics, full ambidextrous controls, and significant upgrades over the Gen 2, including an M-LOK rail and a flat-faced Timney trigger, addressing previous reliability concerns.

Quick Summary

The Sig Sauer MPX Gen 3 8" 9mm PCC features a short-stroke piston system for softer recoil and an 8-inch barrel for improved velocity. Key upgrades include an M-LOK rail and Timney trigger, addressing Gen 2 reliability issues. It offers excellent accuracy and AR-style ergonomics but comes at a premium price.

Chapters

  1. 00:09Intro: Sig MPX Gen 3 Overview
  2. 01:05Technical: Short-Stroke Piston System
  3. 01:41Barrel Length & Ballistics (8")
  4. 02:25Accessories & Ergonomics
  5. 04:54Reliability: Gen 2 vs Gen 3 Comparison
  6. 06:46Range Performance & Accuracy Test
  7. 11:39Final Impressions & Value

Frequently Asked Questions

What makes the Sig Sauer MPX Gen 3's operating system unique?

The Sig Sauer MPX Gen 3 utilizes a short-stroke piston system. This design contributes to a softer recoil impulse compared to typical blowback or delayed blowback systems found in many pistol caliber carbines, enhancing shooting comfort and control.

How does the 8-inch barrel of the Sig MPX Gen 3 affect its performance?

The 8-inch barrel provides a balance between maneuverability and ballistic performance. It offers increased velocity and better bullet expansion compared to shorter barrels, while still remaining compact enough for tactical use.

What are the key upgrades in the Sig MPX Gen 3 compared to the Gen 2?

The Gen 3 MPX features an M-LOK compatible rail and a flat-faced Timney trigger, addressing previous reliability concerns like trigger group breakage reported with the Gen 2 model. It also incorporates a lightweight Lancer carbon fiber handguard.

Is the Sig Sauer MPX Gen 3 considered accurate?

Yes, the MPX Gen 3 demonstrated high accuracy during testing, consistently hitting 6-inch plates at 75 yards and 4-inch plates at 140 yards. Its performance was noted as precise even when used with a suppressor.

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