Eagle Armory STL – Your local, friendly gun shop in Ofallon, MO Eagle Armory STL is located just off of I-70 between Highway K and T.R. Hughes Blvd on E Terra Ln Come see us today at: 911 E Terra Ln O’Fallon, MO 63366 Open Monday – Friday from 10-6 and Saturday from 10-3 (636) 385-6445