Name: Sig Sauer MPX Magazine Holster
Brand: 4Bros
SKU: 4BRMP-MPX
Price: 35.00 USD
Availability: InStock

Description

Sig Sauer MPX Magazine Holster

The Sig Sauer MPX magazine holster from Four Brothers Inc. is engineered for shooters who demand secure retention, fast reloads, and modular compatibility. Designed for range training, competition shooting, and USPSA PCC setups, this low-profile magazine carrier keeps spare magazines accessible without adding unnecessary bulk.

Constructed with durability and versatility in mind, this outside-the-waistband (OWB) magazine holster supports both bullets-forward and bullets-rearward orientation. The ambidextrous design allows shooters to configure carry position and cant to match their reload style and belt setup.

Compatibility & Fit

Verified to fit factory Sig Sauer MPX 20-round and 35-round magazines
Outside-the-waistband (OWB) carry only
Compatible with Blade-Tech and Safariland-style belt attachments

Adjustability & Retention

Infinitely adjustable cant when used with Tek-Lok, Retention Slide, or 4Bros MOLLE Adapter
Approximately 20 degrees of cant when paired with a QLS Fork
Adjustable magazine retention via the Magazine Retention Device (MRD)

Retention tension can be fine-tuned using a 1/8" Allen wrench to match your preference for speed or security.

Magazine Carrier Retention Adjustment Instructions

OWB Attachment Options

Learn more about available outside-the-waistband belt attachment options and how to choose the right setup for your gear.

Outside Waistband Belt Attachments Explained

More Magazine Carriers

Browse additional magazine carriers compatible with a wide range of firearms and competition setups.

Four Brothers Holsters Magazine Carrier Collection

Frequently Asked Questions

Is this magazine holster ambidextrous?

Yes. The magazine carrier supports bullets-forward or bullets-rearward orientation and can be mounted on either side of the belt.

Can I adjust the retention?

Yes. Retention is adjustable using the built-in Magazine Retention Device (MRD) and a 1/8" Allen wrench.

What belt attachments are supported?

The holster is compatible with Tek-Lok, Retention Slide, 4Bros MOLLE Adapter, QLS Forks, and Blade-Tech or Safariland-style mounting systems.

Where is this product made?

All Four Brothers Inc. magazine carriers are proudly made in the USA.

Features

• Formed from .080" Thermoplastic for durability
• Made and assembled with pride in the USA
• Magazine Retention Device allows for retention adjustment with a 1/8" Allen wrench.
• Ambidextrous design will allow you to carry the magazines facing forward or back, depending on your personal preference at any position inside the waistband.