cc-settings-icon BUILD AT HOME
80% Arms sells AR-15 and .308 80% Lower Receivers, 80% Lower Jigs and other accessories which allow you to legally build a firearm at home in most states.
We utilize state of the art 5-axis CNC machines to mill all our .308 and AR-15 80 percent lower receivers to incredibly precise tolerances using premium billet aluminum.
We also offer our patented AR-15 and .308 Easy Jigs® which is the first 80% lower jig that makes it ridiculously easy for a non-machinist to finish their 80% lower in under 1 hour with no drill press required.
Products manufactured by 80% Arms carry a lifetime warranty against manufacturing defects. We will promptly replace or repair any product that we determine to be defective.

AR 15 Magazines


An AR-15 magazine is what you’ll need to feed your new AR-15 80 lower rifle build! These magazines house the .223 Remington and 5.56 x 45 NATO calibers, but can also feed the .300 blackout caliber. We carry industry-proven brands such as Magpul, Hexmag, and Surefeed to make sure your rifles never have to experience a hiccup.


Having a self-made AR-15 rifle is awesome, but do you have reliable mags for them? For the industry standard, choose Magpul; a company whose magazines have been proven in battle and by law enforcement. Hexmags are newer to the game but they’re incredibly lightweight and have hexagonal designs that make for better grip. SureFeed has been supplying the U.S. Military longer than any other company, with hundreds of thousands of magazines delivered to our armed forces. Whatever you choose, we don't stock magazines that we don't trust ourselves, so rest assured you are making the right choice.

80% Arms Has the Best Names in AR-15 Magazines 

• SureFeed magazines: OKAY magazines have been the preferred choice of men and women in the US Armed Forces for years. Since OKAY released the SureFeed brand of AR-15 magazines, civilians got to enjoy them too. Made of lightweight aluminum and stainless steel springs, SureFeed magazines are both durable and lightweight.

• Hexmag magazines: Hexmag magazines are torture tested before they ever make their way to you, meaning that they can withstand anything that you throw at them. The springs are also heat-treated meaning that every aspect of Hexmag magazines are among the toughest.

Magpul magazines: Magpul magazines are impact and crush resistant thanks to their lightweight polymer construction. The curved internal components ensure a constant, steady feed.

How Should You Store AR-15 Magazines?

If you plan on storing your AR-15 magazines long-term, you should probably store them without ammunition. For short-term storage, loaded magazines do fine. Make sure the magazines are stored in a dry place and you should have no problems.

How Many AR-15 Magazines Should You Have?

This question largely depends on how much shooting you plan to do. If you use your AR 15 for frequent trips to the gun range, you may want to make sure you have plenty of magazines on hand, so you don’t have to spend time reloading them. If your AR-15 doesn’t get shot often, you don’t have to worry about having as many. Ultimately, the answer is “more,” but you should have as many AR-15 magazines as you could envision yourself needing down the road.

How Much Do AR-15 Magazines Cost?

While some prices vary, most of our AR-15 magazines cost somewhere between $12 and $20.

Are All AR-15 Magazines Compatible?

With very few exceptions, all AR-15 magazines that are designed for .223 or 5.56 rounds of ammunition are interchangeable so long as you are using a lower receiver that is within mil-spec standards.

Are .223 and 5.56 Magazines the Same?

Yes, the magazines for .223 and 5.56 ammunition are identical. Since the rounds are identical on the outside, the magazines are completely interchangeable. The only difference in .223 and 5.56 ammo is the thicker inner wall of the 5.56. 

Can an AR-15 Shoot Both .223 and 5.56?

An AR-15 that is chambered for 5.56 can shoot .223 ammo but an AR 15 that is chambered for .223 will not be able to shoot 5.56 rounds.

What Is the Largest Capacity AR-15 Magazine?

The largest capacity AR-15 magazine holds 30 rounds.

Why Choose 20 Round AR-15 Magazines?

20 round AR-15 magazines are much better in prone shooting positions. The shorter magazine allows you to bring the rifle closer to the ground resulting in more control. Generally speaking, 20 round magazines are also easier to store.

What are the Parts of an AR-15 Magazine?

AR-15 magazines are made up of the magazine body, floor plate, floor plate retainer, spring and follower.