MAGPUL MAG556-MCB PMAG GEN M3 WINDOW 30RD 5.56MM / 223 REM COYOTE

Magpul builds the PMAG 30 AR/M4 GEN M3 Window (MAG556-MCB) as a 30-round 5.56x45mm and .223 Remington polymer magazine for AR-15 and M4-platform rifles, delivering the reliability and durability that have made the PMAG the most trusted rifle magazine in the world with the added advantage of instant visual round count confirmation.

Key Features

• Part number: MAG556-MCB
• Caliber: 5.56x45mm NATO and .223 Remington
• Capacity: 30 rounds
• Body material: next-generation impact and crush-resistant polymer, coyote brown
• Windows: dual anti-glare translucent MagLevel windows on both sides with painted indicator coil
• Follower: anti-tilt self-lubricating polymer follower
• Spring: long-life stainless steel
• Floor plate: removable flared polymer base for positive grip and disassembly
• Dust cover: pop-off impact and dust cover included
• Exterior: low-profile ribs, aggressive front and rear texture panels, paint pen dot matrix marking panel
• Bolt catch notch: redesigned for positive bolt catch engagement
• Over-insertion stop: prevents over-insertion into the magazine well
• Length: 7.5 inches
• Weight: 5 ounces
• Compatibility: AR-15, M4, M16, HK 416, MR556A1, M27 IAR, FN SCAR MK 16 and 16S, IWI Tavor, SA-80, and other STANAG 4179 compatible platforms
• Made in the USA

Special Features

• The dual anti-glare MagLevel windows run both sides of the body, and the painted indicator coil on the stainless spring lets you read your approximate round count at a glance without removing the magazine from the gun.
• GEN M3 polymer construction exceeds military performance specifications for crush and impact resistance, outperforming previous PMAG generations and aluminum GI magazines in demanding field conditions.
• The constant-curve geometry paired with the anti-tilt follower eliminates the feeding interruptions and tipping issues that plague lesser magazines, ensuring a smooth round path from first to last.
• The redesigned bolt catch notch locks the bolt back reliably on the last round, giving you an immediate and consistent empty chamber indication.
• The paint pen dot matrix panel on the spine lets you mark, label, or number each magazine for quick identification in a multi-magazine loadout.
• The removable base plate allows fast field stripping for inspection and cleaning without tools.

Practical Benefits

• Whether you are running drills at the range, building a competition-ready AR-15 setup, or stocking your home defense rifle, the PMAG 30 GEN M3 Window (MAG556-MCB) gives you 30 rounds of confirmed, reliable feeding in a magazine you can trust to function every time.
• The MagLevel windows let you manage your ammunition supply during a course of fire or in the field without breaking position or pulling the magazine to check your count.
• At 5 ounces, this magazine adds minimal weight to your loaded kit, making it practical for duty carry, range bags, or extended field use where every ounce adds up across multiple magazines.
• Compatible with the broadest range of 5.56x45mm and .223 Rem platforms on the market, your PMAG works across multiple rifles in your safe without buying platform-specific magazines for each one.
• The included dust cover protects the feed lips and interior during storage and transport, keeping your magazine clean and ready whether it sits in a range bag for a week or rides in a chest rig all day.

The Magpul PMAG 30 AR/M4 GEN M3 Window (MAG556-MCB) in 5.56x45mm is a proven platform and a smart addition for any AR-15 or M4 shooter who wants the most dependable 30-round magazine available with the practical advantage of real-time round count visibility.