Expo Arms AR-15 Upper Receiver Parts Kit

The Expo Arms AR-15 Upper Receiver Parts Kit contains the small parts you need to assemble a MIL-SPEC stripped upper. Each kit contains a standard ejection port cover assembly and forward  assist assembly with appropriate pins and springs, and even features a spare C-clip. Proudly made in the U.S.A.

Includes:

• Forward Assist
• Forward Assist Spring
• Forward Assist Retaining Pin
• Ejection Port Cover Door
• Ejection Port Cover Pin
• Ejection Port Cover Spring
• Ejection Port Cover C-Clip