Daniel Defense AR15 A4 Upper Receiver w/ M4 Ramp Bolt Assist & Dust Cover Product Description This Daniel Defense A4 Assembled AR-15 Upper Receiver is ... Model : DD-9003 Manufacturer : Daniel Defense $129.95

Vltor MUR-1A Upper Receiver with Forward Assist/Shell Deflector The Modular Upper Receiver (MUR) is a rigid MilSpec flat-top upper receiver ma... Model : MUR-1A Manufacturer : Vltor $184.95

Vltor VIS-1AK Upper Receivers W/ forward Assist Carbine (7") One of Vltor’s most innovative products is the Versatile Interface Structure (... Model : VIS-1AK Manufacturer : Vltor $559.95

Vltor VIS-2AAK Upper Receivers W/ forward Assist Ext Mid (10") One of Vltor’s most innovative products is the Versatile Interface Structure (... Model : VIS-2AAK Manufacturer : Vltor $589.95

Vltor VIS-2AK Upper Receivers W/ forward Assist Midlength (9") One of Vltor’s most innovative products is the Versatile Interface Structure (... Model : VIS-2AK Manufacturer : Vltor $569.95

Vltor VIS-3AK Upper Receivers W/ forward Assist Rifle (12") One of Vltor’s most innovative products is the Versatile Interface Structure (... Model : VIS3-AK Manufacturer : Vltor $619.95