Ruger AR-15 Assembled Upper Receiver Black 91003

This assembled upper receiver is designed for compatible AR-15-pattern rifles and pistols. It provides a factory-assembled receiver housing for new builds, replacement projects, or repairs and includes the forward assist and ejection-port-cover components already installed.

Built to Ruger’s standards for rugged reliability, the black forged receiver reduces the number of small components that must be installed separately. Because AR-15 parts can vary between manufacturers, Ruger recommends confirming compatibility and having the receiver installed by a qualified gunsmith.

Specifications

• Brand: Ruger
• Product Type: Assembled Upper Receiver
• Platform Compatibility: AR-15-Pattern Rifles and Pistols
• Construction: Forged Receiver Housing
• Assembly Status: Assembled
• Forward Assist: Installed
• Ejection Port Cover: Installed
• Color: Black
• Manufacturer Part Number: 91003
• UPC: 736676910038

Features

• Assembled forged AR-15 upper receiver housing
• Factory-installed forward assist assembly
• Installed ejection port cover assembly
• Includes forward assist spring and retaining pin
• Includes ejection port cover hinge pin, retaining clip, and spring
• Designed for compatible AR-15-pattern firearm builds

Benefits

• Reduces assembly work by including commonly installed upper-receiver components
• Provides a convenient foundation for a compatible AR-15 upper build
• Suitable for replacing a worn or damaged compatible upper receiver
• Factory assembly helps ensure proper placement of the included small parts
• Ruger construction provides a dependable component for custom firearm projects