The PDW has continued to evolve and, in many cases, has moved beyond what we would consider in this category. One example is the modification of popular handguns with an adjustable chassis. This configuration gives us a compact, lightweight weapon that is easy to wield. A great example of that is the new SIG Sauer P365 PDW — TWS365 from Tyrant CNC.

Tyrant CNC Sig P365 PDW — TWS365 – Convert Your 365 Into a PDW
The SIG Sauer P365 PDW — TWS365 is a revolutionary Personal Defense Weapon (PDW) chassis that transforms the compact SIG Sauer P365 into a modular, purpose-built defense platform.
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The TWS365 is more than an accessory — it is a complete weapon system engineered to deliver exceptional versatility, ergonomic control, and rugged reliability in a compact footprint. Developed through extensive testing and iterative design refinement, the TWS365 establishes a new benchmark for modular pistol-based PDW systems.
Design Goal
“We set out to build the most capable PDW chassis ever designed for the SIG P365 platform,” said the CEO, Thomas Janczura. “The TWS365 is a purpose-engineered system that delivers control, adaptability, and durability without compromise.”
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Designed for real-world application, the TWS365 allows users to deploy the brace, reload, and operate the system efficiently with intuitive controls while maintaining natural optic alignment and balanced handling. It has an OWB/IWB holster as well, and fits most bags designed for conceal carry.

Multiple Applications
The applications of this platform are numerous. Where it really shines is as a vehicle-based gun. It is easy to carry in a small space, yet it gives you a stocked weapon you can deploy if things go bad. It is also a good home defense weapon for many of the same reasons. Storage-wise, the footprint is small, yet when the stock is deployed, it is a solid fighting gun. Ultimately, it is the stock that gives us the most out of this setup. The ability to shoulder a weapon greatly increases your accuracy and effectiveness.
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Key Features and Capabilities
| • Modular PDW Chassis converting the SIG Sauer P365 into a fully equipped Personal Defense Weapon |
| • Patent Pending Hybrid construction combining aircraft-grade 7075 aluminum with proprietary polymer components |
| • Patent Pending Spring-loaded side-folding brace with rapid rear-button deployment |
| • Removable blast shield and integrated Picatinny rail sections for accessory mounting |
| • Dual magazine holder with ambidextrous release for rapid reload capability |
| • Compatibility with barrel lengths from 3.1 inches to 6 inches, including compensated and suppressed configurations |
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For more information, visit Tyrant CNC.
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