AR-15 Overstock manufactures and retails a versatile selection of AR-9 parts, upper assemblies, lowers, as well as complete AR-9 rifles & pistols. All AR-15 Overstock AR-9 upper assemblies, rifles, and pistols are custom built to order enabling us to provide you with the best prices you will find anywhere. Purchase with confidence – the quality of all our AR-9 parts are backed by a solid Lifetime Warranty ? if any AR-15 Overstock product becomes defective, we will repair or replace it at no charge. Get your AR-9 parts & components at AR-15 Overstock!