Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine 3-Pack. In addition to the performance gained by a dedicated mag the PMAG 30 AR 300 B also offers a safer way to feed your 300 BLK rifle. Its distinct rib design and smoother upper-half texture provides the shooter a distinct visual and tactile difference from any other PMAG to mitigate dangerous cross-loading issues. Along with optimized 300 Blackout performance the PMAG 30 AR 300 B incorporates all of the GEN M3 features such as next-generation impact and crush resistant polymer aggressive front and rear texture an easily removable slim floor plate a paint pen dot matrix for marking and identification. Specifications for Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine: Manufacturer: Magpul Industries Color: Black Fabric/Material: Polymer Magazine Capacity: 30 Round Caliber: .300 AAC Blackout Gun Make: AR Platform Gun Model: AR-15 Quantity: 1 Pack Condition: New Features of Magpul Industries PMAG 30 Gen M3 AR-15 300 BLK 30 Round Rifle Magazine Dedicated magazine for rifles chambered in 300 BLK that supports the differing geometries found in that caliber. The result is a more reliable magazine Distinct rib design and smooth upper-half texture provide visual and tactile differentiation from other PMAGs to mitigate dangerous cross-loading issues Next-generation impact and crush-resistant polymer aggressive front and rear texture easily removable slim floor plate and a paint pen dot matrix Package Contents: Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine What firearm models does the manufacturer say Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine is compatible with? The manufacturer suggests that Magpul Industries PMAG GEN M3 AR-15 .300 Blackout 30 Round Rifle Magazine is compatible with AR-15