What can I say but, these steel HK MR 556 mags have the smoothest followers of any AR mag that I own Period! Expensive yes but, I doubt they will ever let you down under almost any condition.

Let’s face it, there are plenty of companies competing for a slice of the AR-15 pie when it comes to aftermarket parts, and accessories. However, when it comes down to it, extra magazines are not a “optional accessory.” Magazines are required to run the gun consecutively. If you only have one magazine, you got 30 rounds, and it’s over, then you have to reload the mag, and you are out of the fight till you do, or standing around wasting time on the range. When you reach for an extra mag, the last thing you want to be thinking about is it’s reliability. Did you drop it in dirt, mud, sand, water, a combination of the two? Some mags you should worry, cause they won’t work correctly now and will cause a myriad of failures when running your rifle. Unless you are reaching for an HK 5.56 mag. After the end of the world, only 3 things shall remain: 1999 Toyota Corolla, a Igloo cooler and a HK 5.56 mag. These are invincible and work every time. Sure, they are pricy, but they are made in Germany, by actual Germans, who cannot help by over engineer anything metal they touch. Germans cannot help themselves, it’s in their DNA. This is amplified by the fact that Germans have been the international military sex symbol since Fredrick the Great. Buy once, cry once. And that once might be your last, depending on when your mag failed under the circumstances. Just buy them, load them, charge your AR-15 like a man, and you’ll never touch another plastic mag again. Oh, and don’t forget, the ladies love ‘em!

built like a tank, heavy yet reliable and bulletproof.

You can load them to 30 and insert them into your rifle with almost no pressure at all. Bolt in battery fully loaded mag inserts no problem. Machining top notch. Best mag on the market.