Surefire 100 rd Magazine - Very Rare

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** Long out of production and will never to be seen again. We found a small stash and are passing them along to good homes. Get them while you still can.

Typically ships within 48 hrs


The SureFire high-capacity magazine for 5.56x45 mm (.223 Remington) ammunition, also available in a 60-round version, is compatible with M4/M16/AR-15 variants and other firearms that accept standard STANAG 4179 magazines. Constructed from Mil-Spec hard-anodized aluminum, they feed smoothly and reliably due to optimal geometry, non-binding coil springs, and ingenious nesting polymer followers. The long-lasting springs are cadmium coated for low friction and excellent corrosion resistance. Magazines require no lubricants and can be easily disassembled without tools for cleaning.

SureFire High-Capacity magazines provide distinct tactical advantages: increased initial firepower in ambush situations; fewer reloads overall, which means less downtime and target distraction in a firefight; fast and easy magazine insertion, even with a closed bolt; less bulk compared to drum mags, enabling a normal weapon grip.

  • Compatible with all weapons that accept standard STANAG 4179 compliant magazines
  • Reliable functioning due to mechanical simplicity and high-quality non-binding coil spring—no lubricants required
  • Long-lasting springs are cadmium coated for low friction and excellent corrosion resistance
  • Easily seated in weapon with bolt forward
  • May be kept fully loaded for extended periods without spring fatigue
  • Only 1.66" thick, less than two 30-round magazines clipped together
  • 100-round magazine fits in optional MOLLE-compatible pouch.

 Made in USA

Length............ 12.20 inches

Width.............. 1.66 inches

Weight Empty... 9.6 ounces

Weight Loaded. 3.3 pounds

  • 5
    100 round Mag

    Posted by George Myers on 8th May 2020

    Retro Rifles was quick in getting my order to me. Way things are going at this time I consider a big +.
    Mag is well made and of metal construction.
    Put 93 rounds down range using it. No problems encountered, fed all rounds with no mis-feed.

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