MANUFACTURER: ProMag FAMILY: AR-15 Rifle Series MODEL: AR-15 Polymer Rifle Magazine TYPE: Accessory-Magazines ITEM GROUP: Rifle Magazines CALIBER/GAUGE: 223 Rem | 5.56 NATO CAPACITY: 10 SHIPPING WEIGHT: 0.2 lbs. ADDL INFO: AR-15 Mag w/ Roller Follower MFG MODEL NO: RM-10 UPC: 708279013621