DuraMag 3023002175CP Speed Replacement Magazine Gray with Black Follower Detachable 30rd 223 Rem, 300 Blackout, 5.56x45mm NATO for AR-15 $15.12
Springfield Armory MA5021 OEM Blued Detachable 20rd for 6.5 Creedmoor, 308 Win, 7.62x51mm NATO Springfield M1A $58.99