Description
The Slim-Tuk is DeSantis doing what they do well: taking a simple idea and executing it cleanly. This one is molded from Kydex sheet specifically for the Glock 19, 19X, 19 Gen 5, 23, 32, and 45, and it keeps the footprint about as small as an IWB holster can get. There is no extra material, no bulky backing, just a rigid shell that holds its shape so you get a smooth one-handed draw and an easy reholster every time.
Why the Slim-Tuk Earns a Spot in the Rotation
The standout feature here is the tuckable 360 C-Clip. Instead of locking you into one ride height and cant, the clip rotates a full circle, so you can run it strong side, appendix, cross draw, or anywhere in between at whatever angle feels natural. Because it is tuckable, you can pull a shirt down over the pistol and clip, which makes this a solid pick for anyone who dresses around an office job. The clip itself is a rugged 1.75 inch nylon design that grabs standard EDC belts without complaint.
Ambidextrous by Design, Not as an Afterthought
Plenty of holsters claim to be ambidextrous. The Slim-Tuk backs it up with hardware that reverses in a few minutes with basic tools, converting it from right to left hand carry completely. That makes it a smart buy for lefties who are tired of slim pickings, and handy for households where more than one person carries the same pistol. Retention is handled by an adjustable tension unit, so you can dial the draw from locked down to slick depending on your preference.
Slim-Tuk Fit and Everyday Details
The mouth of the holster stays open for reholstering, the sight channel clears taller sights, and the cut works with the pistols it is molded for whether you carry them stock or with a red dot mounted. At roughly 6.25 inches long with a matte black finish, it disappears under a t-shirt without printing drama. Simple, adjustable, and built to work day in and day out.
Key Specifications
- Manufacturer: DeSantis Gunhide
- Model: 137 Slim-Tuk
- Manufacturer Part Number: 137KJB6Z0
- UPC: 792695353294
- Firearm Fit: Glock 19, 19X, 19 Gen 5, 23, 32, 45
- Material: Kydex
- Color: Black
- Carry Style: Inside the Waistband (IWB), tuckable
- Hand: Ambidextrous (reversible hardware)
- Mount Type: 360-degree C-Clip belt clip
- Belt Clip Width: 1.75 inch nylon clip
- Retention: Adjustable tension unit
- Length: 6.25 inches
- Cant: Fully adjustable, unlimited angles
What’s Included
- DeSantis Slim-Tuk Kydex IWB holster
- Tuckable 360 C-Clip with 1.75 inch nylon belt clip (installed)
- Reversible mounting hardware for right or left hand carry
Frequently Asked Questions
Which pistols does the DeSantis Slim-Tuk 137KJB6Z0 fit?
This version is molded for the Glock 19, 19X, 19 Gen 5, 23, 32, and 45. The open-top cut also plays nicely with slide-mounted red dots on those models. If you run a Glock 17 or another frame size, DeSantis makes separate Slim-Tuk fits for those, so match the model number to your pistol.
How does the ambidextrous conversion work on the Slim-Tuk?
The clip and mounting hardware unscrew and reinstall on the opposite side of the shell, flipping the holster from right to left hand carry. It takes just a few minutes with basic tools. Since the 360 C-Clip rotates freely, you can also set any cant angle you like once it is remounted.
Can I tuck a shirt in over this holster?
Yes, that is one of its main selling points. The C-Clip design leaves a gap so you can tuck a dress shirt between the holster body and your waistband, keeping the pistol hidden with only the clip visible on the belt. That makes it a favorite for business casual and office carry.
Is the retention adjustable on the DeSantis Slim-Tuk?
It is. The holster includes an adjustable tension unit, so you can tighten or loosen the grip on the pistol with a screwdriver until the draw feels right. The rigid Kydex shell keeps the mouth open after adjustment, so reholstering stays smooth and consistent.






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