Mission First Tactical MFT EXD Polymer Magazine 5.56/.223 Rem, .300 AAC, 30rd - Scorched Dark Earth

The Mission First Tactical MFT EXD Polymer Magazine is a rugged 30-round magazine engineered for AR-15/M4 platforms and compatible with other modern rifle systems. Built with 2nd-generation long glass fiber polymer, the EXD delivers 25% greater strength and 60% higher impact resistance compared to previous generations—a meaningful upgrade for shooters who demand reliability under hard use. This magazine feeds 5.56 NATO, .223 Remington, and .300 AAC Blackout ammunition, making it a versatile choice for shooters running multiple caliber uppers on the same platform.

The dual-side transparent windows with numerical round-count markers and a high-visibility indicator coil on the spring give you a quick, accurate gauge of your remaining ammunition without breaking your shooting position. The reinforced ribs on front and rear surfaces provide a solid grip even when wearing gloves or working through rough conditions, while the flared floor plate aids smooth insertion and removal. Tool-less disassembly via dual safety release tabs on the floor plate makes cleaning and maintenance fast—no dedicated mag tool needed. An oversized bolt catch and improved two-point follower stop design ensure consistent feeding and reliable lock-back on empty.

Finished in Scorched Dark Earth, the MFT EXD blends seamlessly into tactical, hunting, and range setups. The USGI-spec stainless steel spring is built for long-life cycling and resists corrosion. Whether you're running a dedicated 5.56 rifle, swapping between calibers, or building a multi-upper system, this magazine delivers the durability and visibility you need to stay focused on the shot—not on guessing how much ammo is left in the well.

Important Caliber Note: While this magazine works with both 5.56 NATO/.223 Remington and .300 AAC Blackout, these two cartridges are not interchangeable. Never cross-load calibers. Loading a .300 Blackout round into a 5.56 NATO chamber can cause catastrophic barrel obstruction and serious injury. Always verify the ammunition matches your barrel and upper markings before loading.

Key Features

• 30-round capacity for 5.56 NATO, .223 Remington, and .300 AAC Blackout
• 25% stronger and 60% higher impact resistance versus previous-generation polymer
• Dual-side transparent windows with numerical markers for quick ammo count
• High-visibility coil spring indicator for round-count at a glance
• Reinforced ribbed surfaces front and rear for secure grip in any condition
• Tool-less disassembly with dual floor plate safety release tabs
• Oversized bolt catch for reliable lock-back on empty
• Two-point improved follower stop design for consistent feeding
• USGI-spec stainless steel spring for durability and corrosion resistance
• Flared floor plate for smooth insertion and removal
• Scorched Dark Earth finish

Specifications

Frequently Asked Questions

Will this magazine work with my .300 Blackout upper on my AR-15 lower?

Yes, the MFT EXD is compatible with both 5.56 NATO and .300 AAC Blackout ammunition. However, you must take extreme care to load only the ammunition that matches your barrel and upper receiver. Never cross-load calibers—loading a .300 Blackout round into a 5.56 NATO chamber can cause catastrophic failure. Always verify the markings on your barrel and upper before loading any ammunition.

Can I use this magazine with rifles other than AR-15/M4?

The MFT EXD is designed for AR-15/M4 platforms and is compatible with a wide range of similar rifle systems. If you have a non-standard platform, verify magazine compatibility with your rifle's documentation before purchase.

How do I know how many rounds are in the magazine?

The magazine features dual-side transparent windows with numerical round-count markers, so you can quickly see the approximate number of rounds remaining. The high-visibility indicator coil on the spring also provides a visual cue at a glance.

What's included, and do I need special tools to take it apart?

The magazine comes complete and ready to use. It features tool-less disassembly—simply press the dual safety release tabs on the floor plate to separate it for cleaning or maintenance. No mag tool or special equipment is required.