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custom kydex sidewinder holster

adaptive draw rig holsters

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note: Photo above may not represent manufacture. Used only for reference.

MKi Inside Waistband

price: $0

Step 1: Custom Build Your Holster

Does your gun have a threaded barrel?

Step 2: Design

  • Black
  • white
  • Coyote
  • OD Green
  • Foliage Green
  • Grey
  • Dark Grey
  • Carbon Fiber
  • fde
  • Blood Red
  • Bio Hazard  Green
  • Multicam
  • Atacs
  • Kryptek Highlander
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  • Kryptek Nomad
  • Kryptek Yeti
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  • Multidoge
  • Black Multicam
  • Woodland Fabric Wrap
  • OD Green Fabric Wrap
  • The Hoff
  • C

Step 3: Design

80% Complete


ADR stands for Adaptive Draw Rig. Its a versitile entry into the market. Slim, minuscule footprint, and tuck-able was our primary mission when developing the ADR. Different models have different roles and can be adapted to perform multiple tasks from Appendix carry, 3 o clock, strong side back.

MKi Series holsters are thin and designed for aiwb but can be tucked in anywhere you can fit a gun. Now the MKI is available with an optional Modwing Gen2 for enhanced concealment. The Modwing Gen2 helps tuck the grip of the gun tighter against the users body aiding in discreetness.

*Current Lead times for ADR MKi’s are 1-2 weeks in most configurations.
Estimated production time: Average 1-2 weeks from time of order to the time it ships.

Review our product


Outstanding Holster

5.0 rating
October 16, 2020

This is just one of the many OTG Hex holsters that I own!!!

Jimmy Hunter

Excellent, very durable, very comfortable holster

5.0 rating
July 31, 2022

I’ve carried my P365 in the ADR MKi with Mid sweat guard for about four years now, seven days a week, and I’m typically wearing a fitted tee or polo. I’ve also shot several two-day pistol courses and two local USPSA matches from concealment using this holster. Zero complaints and highly recommended for anyone carrying P365/G43/Shield/Hellcat etc. It’s a very versatile holster and depending on what I’m wearing and how discrete I need to be, I’ve carried it behind the hip, just forward, and appendix, with my typical position being slightly forward of the hip. The plastic clip is just starting to lose tension so I’m replacing it with a metal HLR Discreet Gear Clip. The holster itself is in remarkably good condition and I expect at least another four years of daily use out of it. It’s an excellent and very comfortable holster that’s built to last.


Big gun and lots of long light. Quite the large package shoved down my britches

5.0 rating
July 13, 2021

MY GO TO company.I’m a firearms instructor and have many different classes I teach as well as take. Have tried to use often but chapped my hide. Have a lot of other OTG gear and happy with all. First foray into appendix carry was theADR mkviii with light-SW 4.5 “ with surefire 300a x-lots of extra length there.
Was ok but chaffed my groin so didn’t use often. After a few years of wishing holster was better suited to
Me. I finally got smart and a saw-trimmed corners and smothed edges with wife’s nail file. The gun, light and holster combo is all I now use. I carry on trips and at times it’s 16+ hours of driving and hardly an uncomfortable moment.
I LOVE my off the grid gear.

Larry Behnke

Best holster out there for concealment.

5.0 rating
June 11, 2021

I’ve tried a lot of holsters in my life. The MKViii with the modwing is by far the best concealing holster I’ve ever had/tried. I have ZERO printing with this holster. I’ll definitely be getting a MKViii for all of my pistols in the future. Thanks OTG for a great product.


Great quality – When you’re looking for a pistol light combo other places can’t do.

5.0 rating
August 18, 2020

They make great holsters here. I was a bit skeptical at first because I was unfamiliar with their name but upon receiving my order, I immediately went back to their website and ordered another.
I own a lot of kydex holsters, I’ve experienced manufactures using cheap kydex, I’ve had holsters that either were too big or too small, fitting terribly but and I’m absolutely impressed with Off the Grid Concepts. Especially, since they have been able to accommodate unique weapon and light combinations. It’s a solid fit.
Definitely consider buying your holster from Off the Grid Concepts.

Kevin Liang

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