AR-15 5.56 ANTITILT 15RD POLY 15RD BK POLY | ROLLER FOLLOWER Manufacturer Model Number: RM-15 Manufacturer: ProMag Model: AR-15 Polymer Rifle Magazine Caliber: 223 Rem | 5.56 NATO Type: Accessory-Magazines Item Type: Accessory Firearm / Accessory Capacity: 15 Shipping Weight: 0.2 Feature: AR-15 Mag w/ Roller Follower Optic Adjustable Objective: false Optic Reticle Illuminated: false