Magpul Industries, Magazine, M3, 300 Blackout, 30Rd, Fits AR Rifles, Optimized Internal Geometry For 300BLK Bullets, Distinct Exterior Rib Design To Mitigate Crossloading, Black Finish

  • 30RD capacity
  • Polymer construction
  • GEN M3 performance features
  • Dedicated 300 Blackout magazine