What is mas defense?

MAS Defense is a company that specializes in providing firearm parts, accessories, and build kits, primarily for AR-15 and AR-10 style rifles. They cater to both individual gun enthusiasts and professional armorers by offering a wide selection of components such as upper and lower receivers, barrels, handguards, and other related products. MAS Defense is known for its competitive pricing, frequent sales, and commitment to customer service. They also provide educational resources and support for customers interested in building or upgrading their own firearms. All sales and shipments comply with federal, state, and local regulations.