Other Details Manufacturer: Derya Manufacturer Part Number: D055039 Additional Feature 1: Also Fits RIA VR Series Adjustable Objective: False Caliber/Gauge: 12 Gauge canDropship: False Capacity: 21 Color: Black Drilled and Tapped: False Fit: Derya DY12 Illuminated Reticle: False Material: Metal / Polymer Model: DY12 Product Type: Accessory-Magazines Scope Cover Included: False Subcategory: Shotgun Magazines