CAS/C5S IWB Holster

Because You Can Never Have Enough Bullets


The current market trends show an overwhelming push towards lightweight, highly concealable single stack pistols. These pistols are easy to carry and with the right holster, are barely noticeable under a wide array of cover garments. The major trade-off with a single stack 9mm is capacity. Even with a +1 or +2 baseplate, you are still sitting at half the round count of a double stack pistol such as a Glock 19. While it is certainly an option to carry magazines in pockets or in a separate pouch, we wanted to offer a system that would allow you to have a spare magazine at the ready in a streamlined low-profile system. Thus the CAS IWB Holster – which stands for Covert Appendix System. We have also produced a variant for strong side carry called the C5S.


We designed the CAS IWB Holster to carry your firearm vertically for easy concealment and comfort when the firearm is located in the appendix position and your magazine at 30° angle for the fastest and most natural draw possible. The rounds are set to face toward the firearm to enhance quick reloads.

The C5S IWB Holster is designed to sit on the strong side of the body, with a canted firearm and slightly canted magazine for fast draw and minimal printing.

We hand contour the holster to have a steep curve that pulls the firearm and magazine into the body to reduce printing and aid concealment.


We designed the CAS/C5S holster to be a simple, one-piece unit that you can easily take on and off with little trouble. No fighting overly complex clip systems or bulky brackets. No threaded fasteners to work loose. Our simple design allows us to save on labor and materials, which allows us to competitively price this holster compared to other offerings on the market.

Easily Concealed

The CAS IWB is easily concealed under a T-Shirt – perfect for summer time carry.

Minimalist Design

Minimalist design prevents discomfort by limiting bulk and unnecessary material, yet still offers a full sweatshield to protect your firearm.

Quick Clip

Like the Wraith IWB – the CAS utilizes a a FOMI clip, which make putting on and taking off the holster extremely quick and easy. No threading belts or dealing with annoying snaps.

Safe & Secure

The top portion of the CAS/C5S is cut to provide an easy grip on both the magazine and pistol, and have Kydex above the pants to create an easy and safe channel to reholster your weapon.

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