KCI 100-Round AR15/M4 Drum Magazine

$199.99 $149.99
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  • Buy 6 or above and pay only $105.00 each
(22 reviews)
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KCI 100-Round AR15/M4 Drum Magazine


The KCI 100-Round Drum Magazine is designed to fit AR15 style rifles chambered in .223 Remington or 5.56x45mm NATO; providing reliability and smooth feeding. Reinforced steel feed lips make the 100-round drum magazine extremely durable.

Ready for any contingency, the magazine exceeds NATO military specifications with an estimated life cycle of 50,000 rounds. With a unique rotation device and low torsion stress springs, it can be pre-loaded and stored indefinitely at the full 100 round capacity.

The drum magazine feeds alternately from the right and left drums, resulting in a fixed center of gravity while firing. The reinforced feed lips, tension arms and supports are made of solid steel. While a loaded aluminum 30 round magazine weighs about 1.5 lbs, the KCI USA drum weighs only 2.2 lbs unloaded and 5 lbs loaded.

Disassembly for cleaning and lubrication is simple and is covered in the manual provided. There are two short belts inside with dummy cartridges for reliable feeding.

A simple loader is included with each magazine making loading fast and easy. Snap the loader on to the tower in the direction indicated by the cartridge-shaped pictogram. Place the magazine on a firm surface and drop 5 rounds into the loading slot. Push the down firmly and the rounds are fed into the drums.

Manufactured in Korea, the package includes the KCI USA 100 Round Drum Magazine, Operator’s Manual, Carrying Pouch, Graphite Lubricant and Loader.

Limited lifetime warranty


  • Weight: 2.2lbs
  • Color: Black/Clear
  • Compatible with: AR-15 / M16 / M4
  • Caliber: .223 / 5.56x45mm
  • Capacity: 100 rounds
  • Body Material: Polycarbonate
  • Spring Material: Music Wire


  • 5

    Posted by J Wo on 8th Dec 2022

    Easy to load. Way easier to unload… has no problem keeping up with bumping binary or WOT full crazy mode. And it looks badass. The only down side is that ammo isn’t free. I’ve got two and they are thirsty…

  • 5
    100 round kci

    Posted by Pedro R on 6th Dec 2021

    I’m very pleased with the shipping was fast and you can’t go wrong with 100 round drum I would highly recommend

  • 5

    Posted by Nicolas Giron on 9th Aug 2021

    This magazine is great. Works and functions perfectly with no issues. Looks amazing on my AR and is very intimidating at the range... makes so many people Jaleous. Thanks great product and great price.

  • 5
    a very good product

    Posted by Charles Airington on 9th Jul 2021

    a very good product

  • 5
    Guaranteed to make you smile

    Posted by Jeff K. on 27th May 2021

    I mean it's a 100 round AR drum magazine, if you don't smile when you get this/first attach it then I'm not sure what to say. The included speed loaded makes it a breeze to load and so far I have had zero issues with it. I have only loaded it up to around 75 rounds but I hear it is difficult to get the last several rounds in if you load the full 100 (though perhaps after some use/break in this may not hold true). If I ever needed a second one, I would not hesitate to purchase another one of these.

  • 5
    Solid Drum Magazine

    Posted by Barry Rhodes on 18th May 2021

    This is one of the best if not the best drum magazine made as it is easy to load not only with the supplied 5 round loader, but with my 10 round loader as well. I really like the clear rear covers as it provides an easy to see level of your remaining ammunition.

  • 4
    Magazine is quality, nice set-up, carrying case.

    Posted by Oregon Shooter on 16th May 2021

    I got the 100 round magazine while they are still not banned under the liberal govt. The magazine looks well made, and even comes in a nice carry bag with pouches. Shipping was in a bubble bag, so the box was messes up a bit, but the mag is okay, would have been more protected in a box, so not great care in packing.

  • 5
    KCI 100-Round AR15/M4 Drum Magazine

    Posted by SoldierByte on 15th May 2021

    Was a bit leary ( of the product NOT the seller ) but since I have utilized this seller previously I just figured I would take the chance. Iam quite satisfied with quality, workmanship, and a fair price. Item is much more in Reliability , quality, workmanship, and price. I trust and would use ArmsUnlimited again and reccomend to FRIENDS. ( I selfish and private keeping good s h I t among GOOD friends and family. My recommendation....? Give em a try..... you won't regret it.

  • 5
    Beast mode activated!!

    Posted by Michael P. on 10th May 2021

    This thing is just so beautiful and well made. I had to get one before big brother tries and take them away. Gotta protect my precious! The speed loader it comes with is amazing, and the carrying bag was surprisingly high quality as well.