FLUX 365 Raider GATR!

Published on October 2, 2025
Duration: 3:00

This video details the assembly of the Flux 365 Raider chassis for a Sig Sauer P365, showcasing the installation of an FCU, custom slide, Gideon Optics Judge XL red dot, and Streamlight TLR-7 HL-X sub weapon light. It highlights the rapid-deploying brace, integrated spare magazine carrier, and the addition of an Antimatter Industries thumb rest for improved control. The build is completed with a function check and holster fitment.

Quick Summary

The Flux 365 Raider is a chassis system that converts a Sig Sauer P365 FCU into a pistol with an integrated brace and spare magazine carrier. This build features a Gideon Optics Judge XL red dot and a Streamlight TLR-7 HL-X sub weapon light, enhanced with an Antimatter Industries thumb rest.

Chapters

  1. 00:00Unboxing and Chassis Inspection
  2. 00:22FCU Installation
  3. 00:29Slide Assembly
  4. 00:56Optic Installation
  5. 01:19Weapon Light and Accessory Mounting
  6. 02:01Magazine and Function Check
  7. 02:47Holster Fitment

Frequently Asked Questions

What is the Flux 365 Raider?

The Flux 365 Raider is a chassis system designed to convert a Sig Sauer P365 Fire Control Unit (FCU) into a pistol with an integrated brace and spare magazine carrier, offering enhanced ergonomics and modularity.

What optic is recommended for the Flux 365 Raider build?

The video demonstrates the installation of a Gideon Optics Judge XL red dot sight. Proper installation involves using thread locker on screws and torquing them to the manufacturer's specifications with a torque wrench.

What weapon light is compatible with the Flux 365 Raider?

A Streamlight TLR-7 HL-X sub weapon light is shown being installed. This light provides 1,000 lumens and 10,000 candela and can accommodate accessories like the Antimatter Industries Micro Wing thumb rest.

What are the key features of the Flux 365 Raider chassis?

The Flux 365 Raider features a rapid-deploying brace for quick deployment, an integrated spare magazine carrier for faster reloads, and an optic mounting platform, all designed around the Sig Sauer P365 FCU.

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