Flux Defense

Flux Defense manufactures pistol chassis systems and PDW conversion kits designed to transform standard handguns into high-performance personal defense weapons. Their approach is straightforward: take a proven pistol platform, add rifle-like control and capacity, keep it concealable.

Raider P365 Ultralight - The newest offering. Adds double the round capacity of a standard P365 while staying compact enough to carry IWB/OWB or off-body. At 3 inches shorter and 85% lighter than an MP5K, it delivers increased accuracy, control, and velocity without the weight penalty. Includes an adjustable holster that works mounted off-body or carried inside/outside the waistband.

Raider P365 Aluminum - The smallest PDW chassis ever made. Turns your P365 into a fast, accurate weapon while staying roughly handgun-sized. Delivers rifle-like control and quicker reloads without sacrificing concealability.

Raider X P320 - A compact PDW that bridges the gap between pistol and rifle capability. Pairs the speed and size of a handgun with carbine-like control and capacity for more firepower in rapid-deployment scenarios.

The ScopeSwitch 2.0 is a new scope mount type that lets your offhand stay on the handguard while controlling zoom—adjusting magnification without breaking your shooting stance. Purpose-built for high-pressure shooting, fast-moving game, and rapid competition transitions.

• •What Separates Them: These aren't just rails and stocks bolted onto a pistol. Flux Defense engineered these systems around specific platforms (P365, P320) to optimize performance. The holster inclusion with the Ultralight, the ScopeSwitch innovation, and the engineering focus on actual duty and competition use cases show they're solving real problems, not just adapting existing ideas.

Tested and endorsed by serious shooters and reviewers: Sage Dynamics, Forgotten Weapons, Garand Thumb, Administrative Results, and TFB TV have all covered their systems.

Shipping delays are currently in effect due to team presence at SHOT Show 2026. Free holster included with purchases (limited time). Full support documentation available including FAQs, installation guides, and product reviews on their site.