Mean Arms Exomag 9mm Luger 15 Round Ejectorless Black

The Mean Arms Exomag 9mm Luger 15-round ejectorless magazine is built for AR-15 shooters running 9mm uppers with delay-system bolts—specifically those using Bearing Delay or CMMG Radial Delay platforms. Unlike traditional 9mm AR conversions that require magwell adapters or force you to swap your entire lower receiver, the Exomag slots straight into your standard 5.56 AR lower without modification, keeping your muscle memory and magazine accessories intact while letting you flip between calibers as easily as changing uppers.

The ejectorless design works in concert with delay-system bolt carriers that handle their own round ejection, ensuring rock-solid reliability without the feeding hiccups that plague adapter-based setups. This is a full-function magazine—not a gimmick—with the same STANAG profile and geometry as your existing 5.56 mags, so it works with your current mag pouches, storage solutions, and range habits right out of the box. No tools, no guesswork, no learning curve. Comes fully assembled and runs the full spectrum of 9mm ammunition, including hollow points.

The specially formulated polymer construction and last-round bolt-hold open feature keep the rifle functioning like an AR-15 should. Whether you're a 9mm competition shooter looking to leverage your existing AR platform or a hunter building a dedicated 9mm setup, the Exomag eliminates the hassle of caliber conversion while preserving the proven reliability of standard AR ergonomics and controls.

Key Features

• Designed for Bearing Delay and CMMG Radial Delay upper receivers
• STANAG-profile magazine—fits standard 5.56 lower receivers without modification
• Compatible with existing mag pouches, storage racks, and accessories
• Ejectorless design optimized for delay-system bolt carriers
• Last-round bolt-hold open functionality
• Fully assembled; no tools or installation required
• Shoots all standard 9mm ammunition, including hollow points

Specifications

Frequently Asked Questions

Will this magazine work with my standard 5.56 AR lower?

Yes. The Exomag features a STANAG magazine profile, so it fits directly into any standard 5.56 AR lower receiver without modification, magwell adapters, or tools. You simply change your upper to a 9mm upper with a compatible delay-system bolt carrier.

What's the difference between the ejectorless version and the ejector version?

This ejectorless version is designed specifically for 9mm upper receivers using Bearing Delay or CMMG Radial Delay bolt carrier groups, which handle round ejection internally. If your upper uses a standard blowback bolt, you would need the ejector version instead.

Do I need any adapters or modifications to use this magazine?

No. The Exomag is a drop-in replacement for your standard 5.56 magazines and requires no adapters, magwell modifications, drilling, or tools. It comes fully assembled and ready to use.

Can I use my existing 5.56 magazine pouches and accessories with this?

Yes. Because the Exomag maintains the same STANAG profile and feel as your 5.56 magazines, it works with existing mag pouches, storage racks, caliber indicators, and other standard AR magazine accessories.