Ammunition Storage Components AR-15/M-16 15 Round Rifle Magazine 6.5 Grendel Blued Follower Black Stainless Steel 15 15-65-SS-BM-BL-ASC. They provide the different capacities of aluminum and stainless steel in .223/5.56 6.8 SPC 6.5 Grendel .308 7.62...