The CMMG AR15 Upper Completion Kit includes most of the components needed to build a custom upper group on modern rifles. These upper parts can also be used to replace worn or damaged components. All included parts are built to exceed military specifications to ensure maximum reliability.

Features:

• Can be used to build or repair a rifle's upper group
• All parts meet or exceed mil-spec to ensure reliability

• Hinge Pin C-Clip
• Ejection Port Cover
• Forward Assist Spring
• Forward Assist Plunger
• Forward Assist Roll Pin
• Ejection Port Cover Spring
• Ejection Port Cover Hinge Pin