Anderson Manufacturing Upper Receiver Parts Kit Ejection Port Cover Forward Assist Assembly AM Upper Parts Kit. This kit includes Ejection Port Cover Assembly and Forward Assist Assembly. Specifications for Anderson Manufacturing Upper Receiver Parts Kit: Manufacturer: Anderson Manufacturing Included Accessories: Ejection Port CoverForward Assist Condition: New Last Chance: Yes Package Contents: Anderson Manufacturing Upper Receiver Parts Kit Anderson Manufacturing G2-K641-0000: Upper Receiver Parts Kit Ejection Port Cover Forward Assist Assembly AM Upper Parts Kit