Tyrant CNC Sig P365 Chassis

In this video, Caleb installs the Tyrant CNC TWS 365 modular pistol chassis system on a SIG P365. This chassis converts the P365 fire control unit into a compact, rigid platform with a folding, spring-loaded brace, a full-length bottom rail for lights, and onboard spare magazine storage. The setup shown retains a Radian Ramjet equipped slide, demonstrating real-world compatibility with popular P365 upgrades. Caleb walks through the complete installation process step by step, including safe disassembly, FCU removal, pin direction tips, thread locker use, torque values, and final function checks. If you are looking for a compact P365 chassis system that supports accessories and folds down for easy storage or transport, this video shows exactly how it installs and how it works. Chapters 00:08 What the Tyrant CNC TWS 365 is 00:17 Overview of the modular P365 chassis concept 00:25 Radian-equipped P365 compatibility notes 00:38 Unboxing the TWS 365 components 01:19 Chassis construction and grip panels 01:42 Built-in spare magazine storage 02:12 Safety check and field strip 02:36 Removing the P365 fire control unit 02:44 FCU pin retainer and removal direction 03:28 Installing the FCU into the TWS 365 chassis 04:01 Aligning holes and reinstalling the FCU pin 04:22 Seating the pin into the retainer 04:47 Reinstalling the slide and takedown lever tip 05:20 Using the chassis without the front shield 05:32 Installing the front shield 07:26 Torque spec for shield screws (8 in-lb) 08:24 Installing the folding brace 09:53 Ergonomics and thumb support features 10:16 Mounting a weapon light 11:19 Light placement and grip clearance 11:39 Reload process using the spare magazine slot 12:04 Sling and QD mounting points 12:13 Folding and deploying the spring-loaded brace 12:50 Compact storage and use case discussion 13:22 Compensator and suppressor clearance 13:56 Final thoughts Parts and items shown Tyrant CNC TWS 365 modular pistol chassis SIG P365 fire control unit Radian Ramjet equipped P365 slide Optional front shield Thread locker supplied with the kit Torque wrench set to 8 inch-pounds Weapon light mounted to the chassis rail 17-round SIG P365 magazines QD sling attachment points