Product Description ProMag RM5FDE Standard 5rd Detachable w/Roller Follower 5.56x45mm Fits AR-15 FDE DuPont Zytel Polymer, Magazine ProMag RM5FDE Standard 5rd Detachable w/Roller Follower 5.56x45mm Fits AR-15 FDE DuPont Zytel Polymer, Magazine at Hinterland Outfitters $10.63 Buy Now Check Price on Amazon Check Price on eBay