Brownells has paired the Daniel Defense Stripped M4A1 Upper Receiver with the ever-popular LAW Tactical Folding Stock Adapter! The Daniel Defense upper is finished in the Desert Dark Color they are known for and we have added the option of either a black or flat dark earth folding stock adapter. Daniel Defense manufactures the highest quality complete AR-15 upper receivers on the market today! Every Daniel Defense upper is painstakingly hand assembled, quality assurance tested, and test fired to ensure that the highest quality product makes it to the hands of customers. The upper receiver is mil-spec with indexing marks and M4 feed ramps. CNC Machined of 7075-T6 aluminum, type III ha Mfg: Brownells