Radial Appendix Carry Holster for Sig P320 - Sidecar Concealment

In this review the Radial Appendix Carry Holsters sidecar design is examined for shooters who want a reliable AIWB option for the Sig Sauer P320 Compact/Full/M18/M17. The bottom line: this holster is built for concealment and practical daily carry, with an adjustable concealment claw and dual pocket clips that let users fine tune retention, ride height and cant. For anyone carrying a compatible P320 who values comfort and minimal printing, this review finds the holster delivers the core functions expected from a purpose-built appendix carry rig.

Key Features

• Specific Fitment: Molded precisely for Sig Sauer P320 Compact/Full/M18/M17 models to ensure a snug, consistent draw and secure retention.
• Adjustable Retention: The holster allows you to dial in retention for both the firearm and the spare magazine so the fit matches your carry preference and activity level.
• Concealment Claw: An adjustable claw pulls the grip tight to the body to reduce printing and improve tucked carry under an untucked shirt.
• Dual Pocket Clips: Two clips offer a range of ride heights and cant adjustments so users can situate the holster where it is most comfortable.
• Suppressor Height Sight & Optic Ready: The molded kydex accepts suppressor height sights and many optics without extra modification so shooters can use common sight setups.
• Lifetime Warranty: Backed by a no BS lifetime warranty that repairs or replaces broken holsters for peace of mind.

Who It's For

The Radial appendix sidecar is aimed at Sig P320 owners who carry appendix and want an integrated spare magazine carrier with strong concealment features. It is well suited to everyday carriers who prefer a rigid kydex platform that holds consistent retention and allows frequent adjustment of cant and ride height.

It is not the right choice for shooters who need a holster that accommodates lasers or weapon lights, or for those whose pistol setup includes large accessories not supported by the molded cavity. Also, those who prefer soft holsters or outside-the-waistband rigs should look elsewhere.

Pros & Cons

Pros

• Well matched fit for multiple Sig P320 variants provides confident retention and consistent draw.
• Adjustability for retention, cant, and ride height makes it easy to personalize comfort and concealment.
• Concealment claw and magazine ridge effectively reduce printing for appendix carry.

Cons

• Not compatible with lasers or weapon lights, limiting use for some aftermarket setups.
• Rigid kydex may feel less forgiving against the body than softer materials to some users.

Specifications

Brand	Radial
Fitment	Sig Sauer P320 Compact / Full / M18 / M17
Material	0.08 kydex precision molded
Carry Style	Appendix inside the waistband (AIWB) sidecar with magazine carrier
Adjustment	Retention, ride height, cant, concealment claw
Accessory Compatibility	Suppressor height sights and optics ready; not fit for lasers or lights
Warranty	No BS lifetime warranty (repair or replace)

Our Verdict

The Radial Appendix Carry Holster is a practical, well-built option for Sig P320 owners who carry AIWB and want an integrated magazine sidecar with strong concealment features. Its adjustability and precise kydex molding make it good value for anyone prioritizing a consistent fit and minimal printing, though it will not suit users requiring laser or light compatibility.

Frequently Asked Questions

Will this holster fit models with a thumb safety?
Yes, it is designed to work with or without a thumb safety on compatible P320 models.

Can I use a weapon light or laser with this holster?
No, these holsters are not fit for laser or light accessories and will not accommodate those attachments.

Are optics or taller sights supported?
Yes, the holster is suppressor height sight and optic ready and needs no additional modification for most common optic cuts or taller sights.