Full metal receiver with M4 engravings. This beautiful set includes a metal hop-up chamber, realistic metal dust cover, and a steel forward assist knob. High quality finishing makes fitting easy. Flat top rail set does not include carrying handle which can be purchased separately. When you install this metal body on a TM M4, this metal body does not support the automatic bolt flap cover when you pull the charge handle back. That feature is unfortunately lost when you install this kit.
Flat top rail set does not include carrying handle which can be purchased separately. Consider the CA metal upper carrying handle.