Why Rubber Washers Are Failing You — And What We Use Instead

Why Rubber Washers Are Failing You — And What We Use Instead

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Introduction

When it comes to mag carrier retention, most companies default to one thing: rubber washers. It’s cheap. It’s easy. And it’s what nearly every holster brand uses.

But here’s the truth — rubber washers aren’t just outdated… they’re unreliable.

The Problem with Rubber Washers

Rubber-based retention might feel okay out of the box, but problems creep in fast:

They compress over time, reducing retention consistency.

They swell in heat, and harden in cold — meaning retention varies depending on climate.

They rely on one screw to balance both sides, so adjusting retention is a guessing game.

They degrade, requiring eventual replacement.

Why We Use MRDs Instead

At LOA, every mag carrier we build — from our AMC two-packs to the RMC rifle carriers — uses a Mag Retention Device (MRD).

This simple upgrade solves every problem listed above:

One-sided adjustment: Precision retention on your terms.

No compression over time: Once it's set, it stays.

Zero weather sensitivity: No more mushy feel in summer or stiff draws in winter.

No wobble, no fail: Magazines stay locked and centered.

Rubber Washer Retention MRD Retention
Inconsistent retention across temperature and time Retention remains consistent in all conditions
Single screw balances both sides Independent, repeatable screw adjustment
Rubber compresses, wears out, and shifts Engineered detent with stable interface
No click, unclear feedback when mag is seated Audible click and tactile lock-up

TL;DR

If you’re trusting your gear to a retention system that degrades, shifts with temperature, and relies on outdated hardware — you’re already behind.

LOA’s MRD retention system isn’t just better.

It’s the new standard.

Shop Mag Carriers with MRD

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