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Questions & Answers
Will it work with a 365 Sig Fuse ?

Yes, the Tyrant CNC TWS 365 carbine conversion kit (PDW Chassis) is designed to work with the SIG P365 Fuse. Because the Fuse uses the standard P365 Fire Control Unit (FCU) and XMacro-style grip, it is compatible with the chassis's tight FCU fit, magazine, and rail attachments.

by CL, Verified Owner, March 21, 2026
Wonder if this will work with FCU's with a safety? And if it does how hard is it to do.

If you have a FCU with a safety, the safety portion can easily be removed on the fcu itself to work with this module. I watched a video & did myself or can have a local gunsmith do it. But if you want to keep the safety functioning for this module you will have to dremel into this aluminum frame in the spots needed for it, I wouldn't recommend doing that yourself if never done the modifications to other grip modules and have a template. Your local gunsmithing store should be able to do it easily though for you... But without modifications you won't be able use a safety FCU

by Cliff Gardner, Verified Owner, January 13, 2026
Customer Reviews
Helpful Positive Review
Best chassis in the game by Tye, January 14, 2026
I’ve liked some of Tyrants previous products, like their p365 trigger. This thing though is on another level! I’ve got 1500 rounds through it and it just keeps getting better and better. It shoots incredibly flat and almost makes it feel like a .22 ....
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1/1 found this helpful
Helpful Positive Review
way better than FLux by Nicky, December 23, 2025
The quality of this thing is far and beyond flux. It just seems more solid, more ergonomic. My flux speed load system is janky and doesnt always work. sometimes the mag get stuck too on the flux. On the TWS the mags feed super smooth, it's easy to d...
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1/1 found this helpful
Most Recent Reviews
Great at first by Dan, Verified Owner, May 13, 2026
Purchased and loved it. But the arm brace movement went from minimal to almost 3/4" in a few weeks. You have to really lock it in to one side to prevent the back and forth movement. You can easily miss further out with the play in the arm brace which...
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Most Recent Reviews
New daily carry by Tye, January 25, 2026
I expected a lot for $600 and this did not disappoint. The build quality is second to none and something I’d expect Daniel defense or some such brand to make. Everything fits exactly how it should. Everything is snug. It shoots super smooth under use...
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Most Recent Reviews
Shoots better than stock p365 by James Reese, January 2, 2026
This wizardly contraption is outstanding! It is super concealable, shoots flat, is comfortable, fun, and a legitimate weapon.
Most Recent Reviews
Unbelievable build quality by Daniel, January 1, 2026
I am a CNC machinist by profession and I am blown away by the craftsmanship of the TWS. It so tight (in regards to tolerance stack up) and the anodize finish is superb. It’s a matte like black finish btw
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Product Info for Tyrant CNC SIG P365 Carbine Conversion Kit

One year ago, our engineering team began a need-to-know only project code-named TWS365. The mission: design the smallest, most versatile PDW/PCC chassis ever created for the Sig Sauer P365 platform. It had to be lightweight yet durable, adaptable yet simple, and built to rival the ruggedness of legendary PDWs like the MP5 - without sacrificing concealability or cost-effectiveness.image

The result is the Tyrant Weapon System 365 (TWS365), a purpose-built chassis that transforms your P365 into a compact PDW weapon system. It is the single most ambitious project our team has ever undertaken - a fusion of aerospace-inspired engineering, modern ergonomics, and battle-ready durability.

Every component of the TWS365 was designed to be modular, serviceable, and intuitive to use. By blending polymer for ergonomics and aluminum for strength, we created a system that balances weight savings with unmatched rigidity - built to last a lifetime of hard use.

Removable Aluminum Blast Shield with Bottom Picatinny - Controls muzzle blast and provides accessory space for lights, lasers, or more.

Spring-Loaded Side-Folding Brace (Patent Pending) - Self-actuated and precision-milled from aluminum, it deploys instantly with rear button actuation and folds flush when stowed. The brace can be activated by depressing the rear-mounted lever with your thumb or the top of the hand when grabbing the TWS.

Removable Magazine Holder with Ambidextrous Release - Dual-magazine system allows faster reloads with AR-15 style controls. Designed for primary-hand operation: thumb for the pistol grip mag, index finger for the magazine holder release, or both for a dual drop. Carry's 2 XMacro/Fuse magazines for a total of up to 50 rounds of ammunition on system.

Rear-Mounted Picatinny Rail - Ready for the brace or future expansions. Hybrid Chassis Construction (Patent Pending) - Aluminum receiver for strength, polymer grip and magazine holder for comfort and weight reduction.

Tool Steel & Stainless Components - Self-captured pins, annealed springs, and interlocking geometry ensure reliability and endurance under extreme use.

Optimized ergonomics allow operators to manipulate the system entirely with their primary hand - from brace deployment to magazine changes. Brace geometry ensures a natural line of sight with a red dot optic, eliminating awkward craning. Barrel compatibility from 3.1'' to 6'' - runs compensated, suppressed, or standard. Serviceable by design, with familiar AR-style controls and fail-safe mating geometry between polymer and aluminum. Industry feedback and aerospace fastening techniques influenced every step of design, making the TWS365 purpose-built for todays defense-minded shooter.

Specifications for Tyrant CNC SIG P365 Carbine Conversion Kit:

Manufacturer: Tyrant CNC
Finish: Anodized
Gun Make: SIG Sauer
Gun Model: SIG Sauer P365
Gun Rail: Picatinny
Condition Details: Other
Condition Quality: Excellent
Condition: New
Weight: 10.7 oz

Features of Tyrant CNC SIG P365 Carbine Conversion Kit

  • Removable aluminum blast shield with bottom mounted picatinny
  • Removable side folding spriing loaded brace
  • Removable Magazine Holder with ambidextrous magazine release
  • Rear mounted Picatinny
  • Aluminum chassis with polymer Grip and Magazine Holder
  • Aluminum brace with rear mounted button actuation
  • Carry up to 50 rounds on system

Package Contents:

  • Tyrant CNC SIG P365 Carbine Conversion Kit

Tyrant CNC SIG P365 Carbine Conversion Kit Orderable Models

List of Orderable Models

  • Tyrant CNC SIG P365 Carbine Conversion Kit, Gun Metal Grey, TD-P365TWS-GNMTL , MPN: TD-P365TWS-GNMTL , UPC: 764046033896 , Code: 2DD-CVC-AED-TD-P365TWS-GNMTL-0RD
  • Tyrant CNC Modular SIG Sauer P365 PWD Carbine Conversion Kit, Burnt Bronze, 0, TD-P365TWS-BB , MPN: TD-P365TWS-BB , UPC: 764046033902 , Code: 2DD-CVC-AED-TD-P365TWS-BB-0RD
  • Tyrant CNC SIG P365 Carbine Conversion Kit, Black, TD-P365-TWS-BLK , MPN: TD-P365-TWS-BLK , UPC: 764046033872 , Code: 2DD-CVC-AED-TD-P365-TWS-BLK-0RD
  • Tyrant CNC SIG P365 Carbine Conversion Kit, Arsenal Grey, TD-P365TWS-AG , MPN: TD-P365TWS-AG , UPC: 764046033889 , Code: 2DD-CVC-AED-TD-P365TWS-AG-0RD

Tyrant CNC SIG P365 Carbine Conversion Kit Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Tyrant CNC SIG P365 Carbine Conversion Kit, Black, TD-P365-TWS-BLK , MPN: TD-P365-TWS-BLK-EDEMO , Code: 2DD-CVC-AED-TD-P365-TWS-BLK-0RD-EDEMO-RE-C
  • USED, Tyrant CNC Modular SIG Sauer P365 PWD Carbine Conversion Kit, Burnt Bronze, 0, TD-P365TWS-BB , MPN: TD-P365TWS-BB-EDEMO , Code: 2DD-CVC-AED-TD-P365TWS-BB-0RD-EDEMO-RE-B
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Last updated 2026-07-01 UTC.