A1Armory carries AR-15/AR-10 Rifle parts & Accessories for upgrading your existing build or completely new builds from scratch. We offer Fast shipping and FREE shipping on orders over $75.00. A1Armory carries Odin Works, Guntec USA, Bear Creek Arsenal, Presma, White Label Armory, AT3 Tactical & many more! Parts include Small parts, Lower parts, Bolt Carrier Groups, AR15 Build kits & plenty more to complete your build or upgrade! AR-15 rifles are the most versatile rifles in existence due to the ability to customize!