Out of stock
SKU: MGMPI556BLK-CASE
UPC: 873750007625
This 10 pack puts ten Magpul Industries Gen 3 window magazines in your hands at once, each holding 30 rounds of 5.56 NATO or .223 Remington for the AR-15 platform. The window version of this magazine adds a translucent strip down the body so you can check round count at a glance without dropping the mag. Shooters running training cycles, building out a duty load, or stocking a range bag buy in bulk for the obvious reason: fewer trips to the counter and a consistent feeding source across every rifle. See our full rifle magazine selection for more options.
The Gen 3 design carries forward the features that made this polymer magazine a standard across military and law enforcement use. A four-way anti-tilt follower keeps rounds tracking correctly through the last round, and the over-insertion stop prevents the magazine from seating too deep when slapped home on a closed bolt. The body is a single-piece polymer construction with a textured grip surface and aggressive front and rear ribs for positive handling under gloves or in cold weather. A removable, impact-resistant floorplate allows disassembly for cleaning and maintenance. The constant-curve internal geometry promotes reliable feeding, and the paint-pen dot matrix on the body lets you mark and identify individual magazines across the 10 pack.
These magazines fit standard AR-15 and M4 lowers chambered in 5.56 and .223. The window strip earns its keep in training and competition, where a quick visual on remaining rounds matters more than in a static range session. Buy the case-quantity pack when you want every rifle in the rack running the same proven magazine, or when you're outfitting a class, a patrol unit, or a long-term ammunition stock. Pair these with our other AR-15 30-round magazines or browse the broader magazine catalog for handgun and rifle options across calibers.
This is a 10 pack, so you receive ten individual 30-round magazines in a single order. Each magazine is the window version with a translucent round-count strip, and all are black polymer chambered for 5.56 NATO and .223 Remington.
The window is a translucent vertical strip molded into the magazine body that lets you see how many rounds remain without removing the magazine from the rifle. It's a quick visual check that the standard solid-body version doesn't offer, which is why many shooters prefer it for training and competition.
Yes. These are built to the standard AR-15 and M4 magazine specification and drop into mil-spec lowers chambered in 5.56 NATO or .223 Remington. They use a four-way anti-tilt follower and an over-insertion stop for reliable seating and feeding.
Yes. The Gen 3 design uses a removable floorplate that lets you disassemble the magazine to clean the body, follower, and spring. The impact-resistant floorplate reinstalls without tools beyond what's needed to release it.
The Gen 3 design adds an over-insertion stop, a longer and more aggressive grip texture, and a paint-pen dot matrix for marking individual magazines. It retains the four-way anti-tilt follower and constant-curve feed geometry that built the line's reputation.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
