At MMC Armory it's our goal to have a wide selection of parts and kits to fit everyone's styles and budgets. We carry good variety of brands and platforms in our uppers category. We have Mil-Spec forgings, billet, XL, PCC, Side Charging, and more. Whether you are building something large or small, we have you covered. With a great selection of Mil-Spec uppers for 5.56 NATO, .223 Wylde, .300 Black Out, .350 Legend etc., or something larger like .458 SOCOM or .450 Bushmaster, you can find it here. We have in house brand options as well as some of the top manufacturers in the industry such Cerro Forge, Aero Precision, Anderson Manufacturing,Ballistic Advantage, Live Free Armory, and more. We have all your AR-15 / AR15 and LR-308 needs covered.