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T.REX Arms Side Car Holster

T.REX Arms

$100.00 - $140.00
(2 reviews) Write a Review
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T.REX ARMS Sidecar Appendix Carry Gun Holster

Modular. Flexible. Concealable. Comfortable. Optic compatible. This is the new Sidecar Holster.

For the past eight years, the T.REX Sidecar has set the gold standard as the go-to AIWB (Appendix Inside the Waistband) holster in the industry. Now, we've elevated it further by incorporating the T.REX ARMS Spine System—a modular hinge system designed to enhance flexibility and conform seamlessly to your body's movements. This innovation ensures unparalleled comfort and optimal concealability. The single-axis pivot system maintains stability, offering the consistency you require when drawing your pistol or reaching for a magazine during a reload. Dive into the video below for an in-depth exploration of the upgraded Sidecar holster, its features, and how to customize it to suit your preferences.

Upgrades we made from the previous Sidecar generation include better retention, more adjustability of holster ride height and cant, and better compatibility with optics and suppressor-height sights. We’ve also completely overhauled our manufacturing pipeline to improve overall quality and consistency.


One T.REX Sidecar Holster with a T.REX Tuckable Clip and Raptor Claw installed; One Raptor Wing attachment a T.REX Tuckable Clip installed; One Spine Pin; One Friction Washer.


Our modular attachments will let you carry an extra pistol mag with adjustable retention and all securely attached to the holster at user-adjustable ride heights. This is the most adaptable holster system on the market, and more attachments are in development.

If you want to run your holster without an attachment (in the appendix or 3-5 o’clock position), each holster comes with our new Raptor Wing, which has a stabilizing belt clip and mounting holes that can be used to attach knife sheaths or other tool holders so you can easily assemble your own attachments.


View the Sidecar Hardware Diagram HERE.

  • Made from 0.093 precision-formed Kydex.
  • Compatible with standardized slide-mounted optics mounted behind the ejection port (not compatible with optics mounted on the frame or over-hanging the ejection port) and with suppressor height sights up to 0.5″ tall.
  • The holster and Spine (as well as the attachments and Spine) are formed from a single piece of Kydex, making it the smoothest and simplest design of any flexible holster system. The holster is connected to the attachment by a machined steel pin, which lends the Spine strength and creates the ability to quickly and easily swap out attachments.
  • Made in the USA by T.REX ARMS.

T.REX IWB Tuckable Clips are injection molded from high-strength acetal plastic. They are 3/4″ wide and 3 5/8″ long and are a Universal fit (i.e. fits belts 1.5″ to 1.75″) with a 0.5″ of adjustment. Made in the USA.

2 Reviews Hide Reviews Show Reviews

  • 5
    T-Rex holsters

    Posted by Robert Reitzel on Jan 13th 2024

    I have 3 trex holsters. 2 side cars one old one and one new one. I’m glad to see warrior poet society selling trex holster. Trex is an awesome company with great customer service.

  • 5
    Awesome holster

    Posted by Will on Apr 6th 2023

    Awesome holster that's made in the south by freedom loving patriots! A perfect partnership with the Society and my sidecar has exceeded my expectations so far. All I need now is the tourniquet option and I'll be set!

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