UPPER RECEIVERS - PARTS

The AR15 Upper Receiver is usually machined from an aluminum forging, but billet upper receivers are also available.  AR15Parts.com only stocks upper receivers that are machined in the US from US made raw materials, either forgings or billet stock.  These high quality components are made for us by Aero Precision, Anderson Mfg, Alexandria Mfg, and ZRO Delta.