Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine .223 Rem/5.56x45mm NATO 30 Round Black 3 Pack Polymer MAG557-BLK-30RD. 56x45 NATO/223 Rem. Similar to the MOE PMAG the GEN M3 features a long-life USGI-spec stainless steel spring for commonality a four-way anti-tilt follower constant-curve internal geometry for reliable feeding and simple tool-less disassembly for easy cleaning. The PMAG 30 GEN M3 also includes a redesigned bolt catch notch in the rear of the magazine that provides increased bolt catch clearance while an over-travel stop on the spine helps ensure the magazine will not over-insert on compatible weapons. Low profile ribs and new aggressive front and rear texture give positive control of the GEN M3 in all environments and a paint pen dot matrix has been added to the bottom panel of the body to allow easy marking for identification. The new easy to disassemble flared floorplate aids extraction and handling of the magazine while providing improved drop protection but is slightly slimmer than before for better compatibility with tight double and triple magazine pouches. Specifications for Magpul Industries PMAG GEN M3 AR-15/M16/M4 .223 Rem/5.56x45mm NATO 30 Round Rifle Magazine: Manufacturer: Magpul Industries Fabric/Material: Polymer Magazine Capacity: 30 Round Caliber: 5.56x45mm NATO .223 Remington Gun Make: AR Platform Gun Model: AR-15 Condition: New Weight: 0.35 lb Features of Magpul Industries PMAG 30 Gen M3 AR-15 .223 Remington 30 Round Rifle Magazine 30-round reliability with no stoppages Use the paint pen dot matrix to easily identify your different loads when it's crunch time The anti-tilt self-lubricating follower ensures a smooth feed and magazine reliability Improved flared floorplate aids magazine handling and disassembly and is slim enough for use with many double and triple pouches Package Contents: Magpul Industries PMAG GEN M3 AR-15/M16/M4 .223 Rem/5.56x45mm NATO 30 Round Rifle Magazine What firearm models does the manufacturer say Magpul Industries PMAG GEN M3 AR-15/M16/M4 .223 Rem/5.56x45mm NATO 30 Round Rifle Magazine is compatible with? The manufacturer says that Magpul Industries PMAG GEN M3 AR-15/M16/M4 .223 Rem/5.56x45mm NATO 30 Round Rifle Magazine is compatible with AR-15