The AM-15 Stripped Upper Receiver with No Forward Assist or Dust Cover is machined from 7075 T6 Aluminum forging. Featuring M4 feed ramps this upper receiver is machined to Military Specifications & Standards and can be used with multiple calibers on the AR-15 platform. This upper receiver comes in type III black hard coat anodize. This Upper Receiver does not have a forward assist or dust cover. Match this Upper with one of our Lower Receivers for a solid fit. - FEATURES: Mil Spec No Forward Assist or Dust Cover - MATERIAL: 7075 T6 Aluminum Forging - FINISH: Type 3 Hard Anodized Black - COMPATIBILITY: All AR15 Calibers except .458 SOCOM - TREATMENT: Non RF85