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Sig Sauer M18 IWB Holster | BASE IWB

Sig Sauer M18 IWB Holster | BASE IWB

Base IWB Holster

Rated 5.0 out of 5 stars
3 Reviews
Regular price $ 39.74 USD
Regular price Sale price $ 39.74 USD
Sale Sold out
Hand Orientation
Color: Black
Optics Cut
  • Symbols for lifetime warranty, patented handcrafted process, marine owned, and made in Texas Symbols for lifetime warranty, patented handcrafted process, marine owned, and made in Texas

Our Sig Sauer M18 holster was designed and crafted using our high-tech proprietary process to exacting specifications. We’re so confident in our holsters that we back them up with a lifetime warranty and 30-day free returns. The Base IWB holster is designed for EDC and all-day comfort. It can be worn cross draw, appendix, strong side, or all the way to small of back. It fully protects the trigger and mag release for ultimate safety.

If you have a Sig Sauer M18 with optics or red dot, we have you covered with our optics ready cut. The optics cut is compatible with or without optics, so if you plan to add one later, getting the optics cut now is a good idea.

Product Features


  • The click lets you know your firearm is secure


  • Set your holster to your preference. Cant adjusts from 0° to 15°


  • Protect your weapon from corrosion with a full-length sweat guard


  • Superior comfort for everyday carry


  • High-quality materials for a high-quality holster


  • Handmade in San Antonio, Texas by our skilled holster craftsmen. 


Compatible Models:

  • Sig Sauer M18


Not Compatible With:

  • Claw attachment
  • Will not fit light/laser rail attachments
  • Front suppressor sights

Our Unique Design Process

Our Base IWB holsters are designed and manufactured in-house using our proprietary design & manufacturing process ensuring a like-a-glove fit with reduced friction and precision retention. Our advanced process allows us to create high-quality Sig Sauer M18 IWB Holster | BASE IWB at a sane price without any lead time. Yes, your holster is in stock and will ship the same day if ordered before 10 CST or the next business day if ordered after.

Shipping & Returns

All orders purchased before 10:00 A.M. Central Standard Time on a regular business day, ship the same day.  All orders received after 10:00 A.M. CST will ship the next business day excluding holidays. With our risk-free guarantee, you can try our Holsters for 30 days and return them for a full refund if you aren’t satisfied with your purchase.
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Rated 5.0 out of 5 stars
Based on 3 reviews
Total 5 star reviews: 3 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
3 reviews
  • GL
    Gavin L.
    I recommend this product
    Rated 5 out of 5 stars
    4 years ago
    SIG M-18

    I ordered this holster for my sig m-18 and it fits great, if I ever need another holster for another one of my handguns I will go through CYA they make there products out of very high quality material plus it comes with a lifetime warranty, but then again what else could you expect from a veteran owned company.

  • DO
    David O.
    I recommend this product
    Rated 5 out of 5 stars
    5 years ago
    For my Sig P320 Compact

    I received my CYA Supply Co. IWB holster today for my Sig Sauer P320 Compact and I am very pleased with it. The weapon fit is spot-on and I only had to back off retention just a bit from how it came set from the factory. The finish of the material is top shelf. (I chose the carbon fiber pattern). The edges are smooth and flawless. I placed the holster at about the 3:30 position and it feels and fits great. I'll definitely refer CYA Supply Co. to others I know that currently carry concealed but have not yet tried this product and for those I know that plan to carry concealed in the future. I'll be gearing up with more of CYA Supply Co. product when I get my S&W Shield. Great company, veteran owned. From this vet to the vets at CYA Supply Co., thank you for your service and thank you for providing great gear for us law abiding citizens that support the 2nd Amendment. (I'm looking forward to the new mag gear!) To all of the team at CYA Supply Co. I say, well done, and again, thank you.

  • KR
    Keith R E.
    I recommend this product
    Rated 5 out of 5 stars
    5 years ago
    CYA holster for P320 compact/carry

    I bought this holster for my Sig p320 compact 45acp. It fits nicely. I am quite pleased with it. It is very comfortable. I had to lose the retention a little, but that was minor. All in all, great holster and company and like myself, being a veteran, it's great to be able to purchase from a fellow veteran, even if it was thru Amazon. Thanks!! Great company.

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