Scaggs
I have bought 6. The only thing more comfortable is owb.
The T.REX Sidecar holster is the industry standard appendix holster for effective concealed carry, allowing you to carry a full-size handgun comfortably alongside a spare magazine, or the available attachment of your choice, whether it’s a Tourniquet, Rifle/SMG mags, Handcuffs, or even a Suppressor. The Sidecar’s Spine System allows you to swap through these attachments to best fit your needs, while allowing for some flexibility. Because the Spine only flexes on one axis, your attachment maintains its rigidity and stays in a consistent location, instead of flopping around like other flexible sidecar-style holsters on the market.
The Sidecar can also be used in the 3-5 o’clock position with the included wing attachment, allowing more possibilities than an appendix-only holster. The mounting holes on the wing can also be used to adapt other things to the Sidecar, like knife sheaths, tool holders, or other attachments that aren’t specific to our system.
FEATURES
| Type | IWB (Inside-the-Waistband) |
| Carry Position | Appendix or 3-5 o'clock (with Sidecar Wing Attachment) |
| Designed Use | Concealment / EDC |
| Material | 0.093" Kydex |
| Clip Options | Plastic or Metal IWB Tuckable Clip |
| Belt Compatibility | Up to 1.75" |
| Optic Compatibility | Yes (can't overhang ejection port) |
| Iron Sight Compatibility | Suppressor-height iron sights up to .500" |
Made in the USA by T.REX ARMS.
To compare more holsters that we offer, try our Holster Comparison Tool.
All our holsters are designed, developed, and manufactured right here at our shop in Centerville, Tennessee, U.S.A.
Combining a full R&D department with in-house manufacturing gives us the ability to quickly adapt, solve problems, and refine our designs so we can deliver an excellent product to you.
T.REX ARMS is among the top 10 largest employers in Hickman County, TN. We are grateful for the opportunity as a small-town business to provide mission-driven jobs to our friends and neighbors.
We will install attachments in this priority order:
Return or exchange the product anytime within 60 days of receipt. Available for domestic orders only. Please use the product as you normally would and if you run into any issues and want to return or exchange it, we will provide a pre-paid label to ship it back.
Learn more →Backed for life. If your product ever breaks due to normal use, we will fix or replace it.
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Scaggs
I have bought 6. The only thing more comfortable is owb.
Hunter
I’ve trusted T.REX ARMS with everything and I have had zero regrets. I came across their YouTube channel when I was 18, they’ve influenced me to carry, to train, and they were even influential in my decision to serve our country. I purchased the sidecar holster as my first holster after I was gifted my first handgun in 2021 and I’ve never looked back. I’m not one for soap boxes but after I joined our armed forces I looked at them once again for a solution for a chest rig that wouldn’t fail me in the same light as that holster that I bought all those years ago, they delivered. All I will say is this, behind all of the social media drama and opinions from individuals who believe anything and everything they see in the media is a company that simply refuses to compromise on quality equipment. I’m 24 now, and through it all whether it be who I was as a civilian or who I am as soldier they have been there. When I see that logo, I don’t care what product it is, I know I can bank my life on it. I look forward to the many years to come and I’m excited where this company is headed, I know that wherever I go professionally or on the civilian side, they’ll be there.
Mark Rogers
Shipping was fast and the quality is awesome. I’m carrying a full sized handgun with an extended mag so it can be a little uncomfortable (not TREX arms fault, that’s my fault for a choice of a EDC) was highly impressed overall. It’s worth the money, it’s high end stuff.
Jordan
Using it for years! My 1st T.Rex holster (sidecar) I had for 6+ years (maybe longer) - eventually got damaged. So naturally i went for a 2nd purchase to replace. It was still within a great price range even after so many years and even with an increase in holster competition. I knew the fit. I knew the comfort. When the 2nd holster got an unexpected crack within a year plus. I found the original purchase info and easily activated the warranty claim. I got a full replacement no hassles, no long wait. I don't need to shop around for a holster. T.Rex has my loyalty.
J.G.
I'm required to carry my handgun concealed 7 days a week, and I don't leave home without it. I purchased the original Sidecar Holster (43X) in 2020 after using other brands' IWB holsters. I realized immediately that the Sidecar was a superior product. It's completely invisible, and I LOVE it. 6 years later, while removing the holster, I noticed that it was cracked almost all the way through the section where my trigger guard slides into the holster. There was little to no retention left. I took pictures of it and contacted T.Rex. In the meantime, I Gorilla-taped the cracked section to maintain some retention. I knew that this fix wouldn't last long. Luckily, I was going on vacation the next day, and I took my other T.Rex sidecar (Glock 17) with me. T.Rex responded almost immediately through email. They said they would replace my Sidecar with their newer model. I was a bit hesitant, but how can I turn down a free replacement? When I know a product works well, I hate to change it up. I received the new Sidecar 5 days later. It was in my mailbox before I got home from vacation. Yes, the new one is better. It's more comfortable with the flexible spine system and adjustable claw. I couldn't be happier with it. T.Rex has exceptional customer service. I'm very impressed.
Eliot
Love all the adjustment points, genuinely conceals better than any other holster I have used, only issue I had, I had to cut the bottom of one of the clips off because it would dig into me.
Marcos
I like it but appendix carry is not for me
Isaac
This holder fits me and the gun well. The tab that holds your pants out a little seems minor, but it males a huge difference on quickly acquiring s good grip on your gun as you draw.
sbohannoniii
The first one I got was great unit. Only problem was it was a tad thinner than I'd like it. Held up for years.
Nathan
Ive carried a variety of handguns in a variety of holsters, this one takes the cake, I have one for my p10c and for my p09c both with a weapon light, it retains the firearm in holster even when upside down. Comfortable, i wear one version or another all day. The only problem i have is the belt clip attachment was a little rough on my left side, dremel made it smooth
C
I honestly ended up drilling holes into it and running some elastic cord through it. The issue I was running into was with how it originally comes. It was tending to bend outwards away from my body at times. After putting the cord in there it definitely contours way better. I wish they would offer that option instead of the metal bar.
David
Comfortable and durable, and I love how it’s fully modular to bring an extra mag, or slim it down for summer carry. You can also adjust the friction on the pistol. I’d definitely buy this again.
Liam
irdawson73
Various adjustments but rides high. Feels too heavy. If ai use a second day belt I can get it to feel ok. Belt in loops rides high.
Cody S.
Honestly this is the best IWB holster I have used. The fit and comfortability is this holster is better than I expected. Also it was extremely fast shipping. Will definitely be getting more products from TREX arms in the future. The sidecar pistol attachment is fantastic and compliments the holster.
William Shook
The Sidecar Holster is a great choice for your firearm platform. Being able to attach various accessories is a bonus. Great choice for a first, second, or third holster.
Noah
The Sidecar is phenomenal. I tried drawing my pistol, but the retention was so good it asked me to schedule a mediation first. This holster has held onto my Glock through sprints, climbing, and rolling around on the range. Meanwhile, T.REX couldn't hold onto the guy whose face was on half the website. The concealment wing hides my pistol better than everyone tried hiding the company drama. The mag carrier and holster work together flawlessly, which is refreshing because it's the first thing with the T.REX name that seems capable of healthy communication. Fantastic product. If they ever release a "Board Meeting Edition," I hope it comes with adjustable tension, a therapist, and a mandatory conflict-resolution seminar. 10/10. The retention is tighter than an NDA.
unrealpalmer
Love the holster. Very comfortable and easy to wear. Fits glock with compensator perfectly.
J Miller
Running it with a Griffen EZ Lok can mount. This is a short mount and it sticks way beyond the end of this extended holster. Next time will order the Glock 17 meant for threaded barrels. I doubt this one is long enough for even a Ramjet. Makes carry uncomfortable.
Blake
The holster is well made and durable, and fits the pistol and light well, especially for a pistol/light combo that is not as common. The belt claw is very frustrating. Every time you put it on it snags your pants as you are trying to attach the other two clips to your belt. I 3D printed a non adjustable one with a “ramp” and it fixed this. Issue. Aside from that one complaint the holster is great.
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