The stylization of the yhm second billet upper receiver is reminiscent of the yhm slr handguards.Because yhm was working with billet 7075-t6 aluminum it gave them the ability to really create an eye catching upper receiver.This upper is made from 7075-t6 aluminum (billet).It has m4 style feed ramps and the inside is coated with dry film lube.It accepts standard upper receiver parts (dust covers, forward assists, etc.) and mil-spec lower receivers.It will fit and function with your standard lower receiver.It has a hardcoat anodized matte black finish.

Receiver Finish: Black Hard Coat Anodized
Type: Billet
Caliber: 223 Rem
Sights: None, Optic Ready
Receiver Description: 7075-T6 Aluminum M4
Handguard Finish: Black