This is 50 Anderson Mfg. stripped lowers. Most of these stripped lowers are consecutively numbered. These lowers are perfect for building the ultimate AR-15 rifle or carbine. They are made from a high-strength, 7075 T6 aluminum forging for reliable performance and outstanding durability. They have a mil-spec, hard anodized finish that adds extra strength to the receiver walls and delivers superior abrasion-resistance for rugged field use. You will get all 50 for the one money.