Upgrading the SIG MPX k | Radian, Lantac, Rattler & much more | #PimpMyGun

Published on September 1, 2020
Duration: 9:10

This guide details the upgrade process for a SIG MPX K, transforming it into a more ergonomic and functional platform. The video, presented by Arm&Gun, showcases the installation of various aftermarket parts including a Radian Raptor charging handle, CMC drop-in trigger, Lantac Dragon muzzle brake, Midwest Industries M-LOK handguard, and an Aimpoint T1 optic on a KDG Sidelok mount. The host emphasizes practical improvements for handling and performance, effectively demonstrating a comprehensive 'Pimp My Gun' style build.

Quick Summary

The SIG MPX K upgrade features a Radian Raptor charging handle for better ergonomics, a CMC drop-in trigger (3.5 lbs pull) for improved precision, and a Lantac Dragon muzzle brake on a 4.5-inch barrel. A Midwest Industries M-LOK handguard and Aimpoint T1 optic on a KDG Sidelok mount are also installed, alongside an F5 Manufacturing 50-round drum magazine.

Chapters

  1. 00:00Introduction and Project Overview
  2. 00:43Charging Handle Upgrade
  3. 01:25Parts Selection
  4. 02:01Trigger and Barrel Upgrades
  5. 02:58Handguard and Accessories
  6. 03:34Disassembly and Grip/Stock Swap
  7. 04:36Barrel and Handguard Installation
  8. 05:35Trigger Install and Reassembly
  9. 06:58Final Assembly and Optics
  10. 08:46Conclusion and Final Look

Frequently Asked Questions

What are the key upgrades performed on the SIG MPX K in this video?

The SIG MPX K was upgraded with a Radian Raptor charging handle, CMC drop-in trigger, Lantac Dragon muzzle brake, Midwest Industries M-LOK handguard, Aimpoint T1 optic on a KDG Sidelok mount, and an F5 Manufacturing 50-round drum magazine.

Why is the Radian Raptor charging handle recommended for the SIG MPX K?

The Radian Raptor charging handle is recommended for its superior ergonomics. It features a wider profile than the factory handle, making it easier to grasp and operate, and it clears the stock more effectively.

What barrel length is used for the SIG MPX K upgrade, and what muzzle device is installed?

The video shows the installation of a 4.5-inch barrel for the SIG MPX K. A Lantac Dragon muzzle brake is then attached, utilizing the firearm's proprietary muzzle threads.

What benefits does the CMC drop-in trigger provide for the SIG MPX K?

The CMC drop-in trigger is installed to provide a lighter and crisper trigger pull, estimated at 3.5 lbs. This upgrade aims to enhance shooting accuracy and overall trigger feel compared to the stock trigger.

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