Mission First Tactical Extreme Duty Polymer 30 Round Magazine #EXDPM556-BL

Mission First Tactical Extreme Duty Polymer 30 Round Magazine #EXDPM556-BL

While .300 AAC Blackout (also known as 300 BLK) and 5.56 NATO cartridges are designed for use in AR-style rifles, they are not interchangeable and must never be confused or cross-loaded. Firing a .300 Blackout round in a 5.56 NATO chamber can result in catastrophic failure, as the larger diameter of the .300 BLK bullet may not fit properly in the 5.56 barrel—leading to a barrel obstruction and potentially serious injury or damage.

Though both cartridges can be used with similar bolt carrier groups and magazines, it is critical that shooters take extreme care when switching between calibers, especially when using rifles with interchangeable uppers or multi-caliber setups.

MFT EXD Polymer Magazine. Utilizing new material technology and manufacturing processes for enhanced strength, durability, and reliability to exceed demanding military performance specifications. Designed for the AR15/M4 but allowing use with a wide range of non-AR15/M4 platforms.

Features:

• 50% Stronger
• 3x More Impact Resistant than traditional nylons
• Next Generation Long Glass Fiber Polymer
• Enhanced Strength & Durability
• Ribbed front and rear gripping surface
• Long-life USGI-spec stainless steel spring
• Four-way anti-tilt self-lubricating follower
• Flared floor plate
• Oversized bolt catch
• Tool-less disassembly with double floor plate safety release tabs

.300 Blackout vs. 5.56 NATO Disclaimer

While .300 AAC Blackout (also known as 300 BLK) and 5.56 NATO cartridges are designed for use in AR-style rifles, they are not interchangeable and must never be confused or cross-loaded. Firing a .300 Blackout round in a 5.56 NATO chamber can result in catastrophic failure, as the larger diameter of the .300 BLK bullet may not fit properly in the 5.56 barrel—leading to a barrel obstruction and potentially serious injury or damage.

Though both cartridges can be used with similar bolt carrier groups and magazines, it is critical that shooters take extreme care when switching between calibers, especially when using rifles with interchangeable uppers or multi-caliber setups.