Mag Kci USA AR-15 5.56mm 100-Round Drum Magazine

The KCI USA AR-15 5.56mm 100-round drum magazine is built for shooters who want serious capacity without constantly reloading on the range, at competition, or in the field. This polymer and steel drum feeds two independent belts alternately from left to right, maintaining balanced weight distribution throughout the firing cycle—a smart design that keeps your AR handling predictably even as you run through a full complement of rounds. Steel-reinforced feed lips ensure reliable feeding shot after shot, and the included loader makes filling all 100 rounds less tedious than hand-feeding a conventional magazine stack.

The package ships complete: the drum itself, operator's manual, a carrying pouch to protect and transport it, graphite lubricant, and the loader tool. It's compatible with standard AR-15, M16, and M4 platforms chambered in 5.56x45mm NATO or .223 Remington. Keep in mind this drum is not designed for hollow-point ammunition, so stick to full metal case or soft-point rounds.

For high-volume shooting sessions—whether you're working through a full course of fire, testing loads, or simply enjoying a day of uninterrupted trigger time—the 100-round capacity eliminates the mag-change pause. The drum's dual-feed design and reinforced construction make it a legitimate high-capacity option for AR owners who value both firepower and reliability.

Key Features

• 100-round capacity in a single magazine
• Dual independent follower belts for balanced weight and smooth feeding
• Steel-reinforced feed lips for durability and consistent performance
• Polymer and steel construction
• Includes loader tool, carrying pouch, graphite lubricant, and operator's manual
• Compatible with AR-15, M16, and M4 pattern firearms

Specifications

Frequently Asked Questions

Will this 100-round drum fit my AR-15?

Yes, the KCI USA drum is designed for standard AR-15 platforms, as well as M16 and M4 pattern firearms chambered in 5.56x45mm NATO or .223 Remington.

What ammunition should I use with this magazine?

Use full metal case or standard soft-point ammunition. This drum is not designed for hollow-point rounds.

What comes in the box?

The package includes the 100-round drum magazine, operator's manual, carrying pouch, graphite lubricant, and a magazine loader tool to speed up filling.

Can I disassemble the drum to clean or repair it?

The manufacturer's warranty is voided if the magazine is disassembled, so it's best to treat it as a sealed unit and refer to the operator's manual for maintenance guidance.