TriggerTimes_blkBKG
Share this:
Share this:
dos boot

Product Spotlight: Die Free Co DOS Boot

October 13, 2025

Introduction 

In this product spotlight, Caleb from Brownells introduces a unique accessory from Die Free Company, the same team behind popular products like the Kung Fu Grip, Tigerclaw, and Full Stop. This time, they have turned their attention to magazines with a product called the Dos Boot.

What is the Dos Boot Magazine Base Plate

The Dos Boot is a magazine base plate extension designed for Gen 3 PMAGs. While originally intended for the 20-round PMAG, it works just as well with 30-round and 40-round magazines. Its purpose is simple: it adds capacity and improves functionality when shooting from prone or supported positions.

Why It Is Called the Dos Boot

The name "Dos Boot" comes from its function as a +2 extension. By replacing the standard magazine base plate, the Dos Boot allows your magazine to hold two additional rounds. A 20-round magazine becomes a 22-rounder, and a 30-round magazine becomes a 32-rounder.

Features and Color Options

The Dos Boot is available in black and flat dark earth (FDE), giving shooters options to match their rifles and gear setups. It is textured on the bottom to provide stability when resting the magazine on a bench, barricade, or directly on the ground. This design also keeps the rifle’s pistol grip from contacting the surface, making prone shooting much easier.

Installing the Dos Boot on a 20-Round PMAG

Installation is simple. By removing the factory base plate and sliding the Dos Boot into the grooves, the extension locks into place. The process is quick and requires no special tools. With the extension installed, a standard 20-round PMAG now functions as a 22-round magazine.

Shooting from Prone with the Dos Boot

One of the main advantages of the Dos Boot is improved shooting stability. When firing from prone or using a barricade, shooters can rest the rifle on the magazine without interference from the pistol grip. The Dos Boot acts like a stable base, giving two points of contact for greater control and accuracy.

Magazine Function and Reliability

Some shooters worry about malfunctions when resting a rifle on a magazine. Caleb notes that with high-quality magazines like Gen 3 PMAGs or Brownells T-MAGs, there is no issue. The Dos Boot is specifically designed to complement reliable magazines and will not compromise function during use.

Branding and Packaging

Die Free Company adds personality to the Dos Boot with fun and creative packaging. The branding includes snake-themed boots and playful cowboy artwork, giving the product a unique identity beyond its function.

Installing the Dos Boot on a 30-Round PMAG

The installation process is identical for a 30-round PMAG. Once installed, the Dos Boot turns it into a 32-round magazine. Even with the added length, it still provides excellent stability for prone shooting and allows shooters to keep their elbows down while maintaining a solid firing position.

Final Thoughts and Wrap Up

The Dos Boot magazine extension is a clever, functional, and durable upgrade for AR-15 shooters who use PMAGs. It adds two extra rounds, improves prone shooting stability, and comes in colors that match most rifle setups. For anyone looking to enhance their magazines with a reliable and affordable accessory, the Dos Boot is a simple but effective solution.

Brownells encourages shooters to share their experience with the Dos Boot in the comments and reminds viewers that their tech line is always available for product support or installation help.