About AR-15 Magazines
First introduced by ArmaLite in 1956 and later acquired by Colt in 1959, the AR-15 platform has evolved into the most popular modern sporting rifle in the world. Known for its lightweight design, modularity, and performance, the AR-15 remains a top choice for enthusiasts, competitors, and tactical users alike.
At the heart of reliable rifle function is one of its most vital components: the magazine.
AR-15 magazines are essential for feeding ammunition smoothly, maintaining accuracy, and ensuring dependable cycling during rapid or sustained fire. With the rifle’s legendary modularity, today’s shooters enjoy access to a vast selection of magazines tailored to specific capacities, materials, and finishes.
Whether you’re stocking up for training, upgrading your kit, or building your dream rifle, having high-quality AR-15 magazines is non-negotiable.
At Ammunition Depot, we proudly offer a wide assortment of AR-15 magazines for sale from trusted brands like Magpul, Amend2, Lancer, Hexmag, and more. From standard 30-round options like the Magpul PMAG Gen 2 to multi-pack bundles for range days or loadout prepping, we have you covered.
Browse AR-15 magazines built from durable polymer or rugged aluminum, equipped with features like anti-tilt followers, stainless steel springs, and enhanced gripping surfaces—designed to perform in all conditions.
Premium AR-15 Magazine Selection
Choosing the right AR-15 magazine can make a significant difference in performance, reliability, and overall shooting experience.
Whether you're a competitive shooter, a weekend range-goer, or building a defensive setup, selecting a trusted brand ensures your rifle feeds flawlessly every time. At Ammunition Depot, we carry AR-15 magazines from the most popular and reliable brands in the industry, each known for quality craftsmanship and field-tested durability.
Amend2
Amend2 magazines are made in the USA and are known for their lightweight polymer construction, high-visibility followers, and aggressive texturing for better grip. With their MOD-2 series, Amend2 has become a favorite for shooters seeking rugged performance at an affordable price.
Magpul
A household name in firearm accessories, Magpul’s PMAG series sets the standard for polymer AR-15 magazines. With options like the Gen M2 and Gen M3, Magpul offers enhanced durability, anti-tilt followers, and dust covers to protect stored rounds. These mags are combat-proven and trusted by military, law enforcement, and civilian shooters around the world.
ProMag
ProMag offers a wide range of AR-15 magazines in both polymer and steel, catering to shooters who want budget-friendly options without sacrificing functionality. Known for their high-capacity variants and consistent availability, ProMag is ideal for both recreational and tactical applications.
Mission First Tactical (MFT)
Mission First Tactical produces ultra-reliable AR-15 magazines with reinforced polymer bodies, flared floorplates, and tool-free disassembly. Their Extreme Duty mags are designed to withstand the harshest conditions while delivering consistent feeding under stress.
Weapon Works
Known for their custom Cerakote finishes and attention to aesthetic detail, Weapon Works offers AR-15 magazines that stand out in both style and performance. These mags often feature artwork, limited edition designs, and a durable finish that resists corrosion and wear—perfect for collectors and tactical enthusiasts alike.
AR-15 Magazine Features
INTERCHANGEABLE
All AR-15 magazines are interchangeable with each other and will work in any standard M16/AR15 style magazine well (with the exception of the AK47).
This means AR15 owners can use any brand's magazine in another brand's rifle without having to worry about whether or not it will fit right or load properly.
CUSTOMIZATION
When it comes to style and looks, owners have dozens of AR15 magazine options to choose from. Many brands offer a wide variety of graphics, images, and some even offer custom wraps.nAnother (more expensive) option includes custom Cerakote Magazines.
Similar to anodizing, but at a much higher degree; Cerakote helps prevent corrosion, reduces wear, and will not mar the finish of your rifle.
STANDARD CAPACITIES
The standard magazine capacity for an AR-styled rifle is 30 rounds. However, many AR-15 magazines feature various round capacities and are readily available with much higher capacities, such as Drum Magazines, which can hold 50+ rounds. *State laws have created regulations to limit the number of rounds a magazine can legally hold. Generally, the limit is ten rounds or less.
POLYMER CONSTRUCTION
Polymer AR15 Mags tend to be built exceptionally well and are extremely durable. Advances in polymer technology have enabled a range of developments in magazines.
An example of this is witness holes, which allow you to monitor your round count. Many magazines come with a wire spring and polymer anti-tilt follower. These features help to prevent rounds from binding in the body.
STEEL CONSTRUCTION
Steel AR15 Mags are known for their durability. They use reliable tensile strength springs and precision machined feed lips for better feeding. These mags also tend to have a polymer follower, which will help keep the magazine's spring from binding inside the body.
COMPONENTS
Although individual magazines can slightly differ according to the manufacturer, there are generally four main components to an AR15 mag.
- The Follower: The follower is the tray that lifts the cartridges into position.
- The Spring: The spring powers the follower, generating the force needed to push the rounds upward.
- The Base Plate: The base plate secures the spring in place and can be swapped out for additional customization.
- The Body: The body houses all internal components of the magazine in place and is typically composed of metal or polymer.
AR-15 Magazine FAQs
QUESTION: Which are the best AR15 Magazines?
ANSWER: Many trusted brands currently produce quality and reliable AR15 magazines in today's market. Quality standards for an AR 15 magazine vary from owner to owner. Three factors to consider are durability, round feeding, and price.
In the United States, popular AR15 magazines include:
QUESTION: What calibers fit in an AR15 Magazine?
ANSWER: Most AR15 rifles use the NATO Standardization Agreement (STANAG) magazine. This magazine is designed to be compatible with multiple shooting platforms.
Almost all AR15/M16 platforms run STANAG magazines with no issues, including modern sporting rifles. In addition, several manually operated rifles, such as the bolt-action Mossberg MVP Predator, also work with the standard AR15 magazine.
QUESTION: Are all AR15 Magazines compatible?
ANSWER: Generally, most AR-style and modern sporting rifles accept STANAG magazines from reputable manufacturers. Some manufacturers, like Bushmaster, are known to have trouble operating with older AR15 Orlite magazines.
However, this is rare and shouldn't hinder your rifle's performance. Owners should be cautious of discount magazines from unfamiliar brands (generally made overseas). These AR15 mags are sometimes made to different standards than brand-name AR15 mags and may not feed properly in every rifle.
QUESTION: Are 223 and 5.56 Magazines the same?
ANSWER: The most significant difference between .223 and 5.56 rifles is in the freebore spacing of the chamber. Because the two cartridges have nearly identical dimensions, almost all AR15 magazines for this caliber can feed both cartridges without noticeable issues.
While all 5.56 NATO rifles can run 223, it may be unsafe to shoot the 5.56 in a rifle chambered just for 223 because of the elevated pressures. Firearm owners should always check the head stamping on their ammunition to know which type they're shooting.
QUESTION: Can you keep AR15 Magazines loaded?
ANSWER: Generally, yes. Although it's a much-debated topic, many manufacturers state that leaving magazines fully loaded won't weaken their springs.
Most firearm experts agree that creating a steady rotation can help avoid compromising the springs and will prolong the life of your AR15 mags. Another helpful practice is underloading your AR magazines by two or three rounds. Doing so will help reduce spring compression for short-term storage.
QUESTION: How should you store AR15 Magazines?
ANSWER: Most AR 15 magazines are durable and rugged enough to be stored for short periods under reasonable conditions. However, if you plan on storing your magazines for an extended period of time, the best practice is to keep them unloaded to preserve spring compression.
For storage periods longer than a few months, you can stack polymer magazines in a sealed container without further preparation. All-metal magazines can corrode with time, so applying a thin layer of oil before storage can help prevent rust for decades.
QUESTION: How many AR15 Magazines should you have?
ANSWER: Objectively, there is no required number of AR15 magazines that an owner should have. Instead, the number depends on the needs of each individual shooter. Most AR15 rifles come standard with at least one or two magazines, but most shooters add more to their collection over time.
QUESTION: Can I purchase an AR15 Magazine in my state?
ANSWER: Nearly all retail gun stores will have AR 15 magazines in stock since they're one of the most popular platforms for modern sport shooting. Additionally, almost all online retailers also offer magazines from several different manufacturers.
The key takeaway is understanding various jurisdictions based on your residence. Some states have banned online sales or home shipments of firearm accessories, so be sure to know your local and state laws before ordering your AR15 magazine online.