Alexander Arms builds this detachable box magazine for AR-15-pattern rifles chambered in .50 Beowulf, the brand’s own proprietary big-bore cartridge (Alexander Arms part no. MEB5010). It’s finished in black steel and holds 10 rounds.

Key Specifications

• Chambered in .50 Beowulf.
• Holds 10 rounds.
• Constructed of black steel.
• Measures approximately 7.5 inches in length.
• Uses a detachable box magazine design.
• Fits AR-15-pattern rifles chambered in .50 Beowulf.
• Manufactured by Alexander Arms, originator of the .50 Beowulf cartridge.

Frequently Asked Questions

Will this fit a standard 5.56 AR-15 magazine well? It’s built for AR-15 rifles chambered specifically in .50 Beowulf, which uses the standard AR magazine well but requires a .50 Beowulf-specific magazine like this one.

Is .50 Beowulf the same as .50 BMG? No, .50 Beowulf is a straight-wall AR-15 cartridge and is not interchangeable with .50 BMG.

Buy the Alexander Arms AR-15 .50 Beowulf 10-Round Magazine

Order it from our Lubbock, Texas gun shop as soon as it is available to ship. Browse our full gun accessories selection.