F ProMag RollerMag Magazine AR-15 223 Remington, 5.56x45mm, 300 AAC Blackout Polymer - 559075 $11.99 RM-5-OD show more like this 5.00 MidwayUSA F ProMag AR-15 5-Round 5.56mm Rollermag Magazine w/Roller Follower, Polymer, Olive Drab, RM-5-OD $13.95 RM5OD show more like this Dvor F ProMag AR-15 5-Round 5.56mm Rollermag Magazine w/Roller Follower, Polymer, Olive Drab, RM-5-OD $13.95 RM5OD show more like this Free Shipping on most orders over $49 Optics Planet