PMAG 20 AR 300 B GEN M3 BLK 100 CASE PACK Manufacturer Model Number: MAG1182-BLK Manufacturer: Magpul Model: PMAG D-50 Caliber: 300 AAC Blackout Type: Accessory-Magazines Item Type: Accessory Firearm / Accessory Capacity: 20 rnd Finish: Black Shipping Weight: 0.29 Feature: Fits AR15 Platforms Optic Adjustable Objective: false Optic Reticle Illuminated: false