The JM4 Tactical Magnetic Sidecar Holster is an appendix carry holster with an attached leather magazine carrier — both stitched together as a single unit and both secured to the waistband by JM4's patented Quick Click & Carry magnetic system. The gun sits in the holster on one side; a spare magazine rides in the carrier alongside it. The magnetic attachment system is protected by U.S. Patent 9,784,530 B1 and U.S. Patent 11,747,109, with a third utility patent approved and awaiting issuance. No belt, no loops, no clips — the entire unit attaches through any fabric and releases in one motion.

What Makes It Different

Most products that combine a holster with a magazine carrier attach two separate components — a holster clipped next to a magazine pouch. The Sidecar is designed and stitched as a single piece of Full Grain Grade A U.S. Steerhide leather from the start. There is no secondary attachment between the holster and the magazine carrier, no hardware to loosen, and no gap for the two pieces to shift apart on the draw.

The retention systems are independent of each other. One set of magnets retains the firearm in the holster. A separate, independent set of magnets retains the magazine in the carrier. Neither system interferes with the other — drawing the gun does not disturb the magazine, and loading or unloading the carrier does not affect the holster.

Both systems — the gun retention, the magazine retention, and the waistband attachment — are part of the same compact single-unit footprint. At the appendix position, that means one cover garment conceals both the firearm and the spare magazine together, rather than two separate items in two separate locations on the body. The holster portion is based on JM4's High Ride Quick Click & Carry design, which positions the grip high on the waistline for a full, natural combat grip on the draw.

Key Features & Benefits

• Holster and Magazine Carrier Stitched Together as One Piece: Not two components clipped together. A single unit built from Full Grain Grade A U.S. Steerhide leather — no hardware between the holster and the carrier, no shifting, no failure points between them.
• Dual Independent Magnetic Retention Systems: One set of magnets holds the gun in the holster. A second, independent set holds the magazine in the carrier. Each operates on its own — drawing the gun does not disturb the magazine, and accessing the magazine does not affect the holster.
• Magnetic Waistband Attachment — No Belt, Clips, or Loops Required: The entire Sidecar unit attaches to the waistband through clothing via JM4's Quick Click & Carry magnetic system. Works with denim, athletic wear, dress pants, or any fabric.
• High Combat Grip — Based on the High Ride QCC Design: The holster rides high on the waistline, placing the grip of the firearm in a position that allows a full, proper combat grip at the draw without interference from the waistband.
• Compact, Concealed Appendix Carry Footprint: Gun and spare magazine together at the appendix position — one combined footprint under a single cover garment rather than two separate concealment challenges.
• Full Grain Grade A U.S. Steerhide Leather: The same quality leather used across all JM4 Tactical holsters. Cut and stitched in Texas.
• Limited Lifetime Warranty: The Magnetic Sidecar is covered under JM4 Tactical's standard limited lifetime warranty.

Specs & Details

Frequently Asked Questions

What is a sidecar holster?

A sidecar holster is a holster with an attached magazine carrier built into the same unit — the gun rides in the holster on one side, and a spare magazine rides in an adjacent carrier alongside it, similar to the way a motorcycle sidecar sits next to the bike. The JM4 Tactical Magnetic Sidecar is stitched as a single piece of Full Grain Grade A U.S. Steerhide leather, with both the gun retention magnets and the magazine retention magnets built into that one unit. The entire assembly attaches to the waistband via JM4's Quick Click & Carry magnetic system — no belt, loops, or clips required.

What is the advantage of carrying a holster and magazine pouch together?

Carrying your firearm and a spare magazine at the same location means your hands go to one place during a reload rather than two. In an appendix setup, both are accessible from the front of the body simultaneously. From a concealment standpoint, one combined unit at the appendix creates a single print under a cover garment. Carrying a holster in one position and a separate magazine pouch in another requires a cover garment to conceal two distinct items at two distinct locations — which adds complexity and increases the risk of printing. The sidecar configuration reduces that to one concealment challenge.

How does the Magnetic Sidecar attach without a belt?

The Magnetic Sidecar uses JM4 Tactical's Quick Click & Carry magnetic attachment system, protected by U.S. Patent 9,784,530 B1 and U.S. Patent 11,747,109, with a third utility patent approved and awaiting issuance. A set of magnets inside the sidecar unit presses against the outside of the waistband; a corresponding magnetic plate sits on the inside of the waistband. The magnets pull together through the fabric — through denim, athletic wear, dress pants, or any standard waistband material — and hold the entire unit in position without any belt, belt loops, or mechanical clips.

The Magnetic Sidecar is built for the appendix carrier who wants their gun and a spare magazine on body, together, without separate gear at separate positions. One unit. One footprint. One attachment point. Full Grain Grade A U.S. Steerhide, made in Texas. Limited lifetime warranty. Most orders ship same or next business day.

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