Mission First Tactical Window EXD Rifle Magazine AR-15 5.56x45mm/.223 Rem/.300 AAC 30 Round Black 1 Pack Polymer 30RD. Designed for the AR15/M4 but allowing use with a wide range of non-AR15/M4 platforms. Specifications for Mission First Tactical Window EXD AR-15 5.56x45mm/.223 Rem/.300 AAC 30 Round Rifle Magazine: Manufacturer: Mission First Tactical Fabric/Material: Polymer Magazine Capacity: 30 Round Caliber: 5.56x45mm NATO .223 Remington Gun Make: AR Platform Gun Model: AR-15 Features of Mission First Tactical Window EXD AR15 5.56x45mm..223 Rem..300 AAC 30 Rounds Rifle Magazine Dual-side windows with numerical markers High visibility coil on the spring Next Generation Long Glass Fiber Polymer Enhanced Strength & Durability Ribbed front and rear gripping surface Tool-less disassembly with double floor plate safety release tabs Long-life USGI-spec stainless steel spring Four-way anti-tilt self-lubricating follower Flared floor plate Oversized bolt catch Paint Pen dot matrix Package Contents: Mission First Tactical Window EXD AR-15 5.56x45mm/.223 Rem/.300 AAC 30 Round Rifle Magazine What firearm models does the manufacturer say Mission First Tactical Window EXD AR-15 5.56x45mm/.223 Rem/.300 AAC 30 Round Rifle Magazine is compatible with? The manufacturer suggests that Mission First Tactical Window EXD AR-15 5.56x45mm/.223 Rem/.300 AAC 30 Round Rifle Magazine is compatible with AR-15Mission First Tactical EXDPM556-W-BL-30RD: Window EXD Rifle Magazine AR-15 5.56x45mm/.223 Rem/.300 AAC 30 Round Black 1 Pack Polymer