The aero precision xl upper is forged from 7075-t6 aluminum and features an enlarged ejection port.The xl upper receiver is your best choice when you're planning a build to send big rounds down range.Features- port door opening enlarged to enhance larger diameter brass ejection (.450 bushmaster,.458 socom,.50 beowulf, etc.), laser marked "xl" designation on the upper receiver tang,.250 takedown pin holes, and laser engraved t-markings.Compatible with ar-15 lower receivers, ar-15 port doors and forward assists.Works with standard ar-15/m16 components.Includes port door and forward assist.

Receiver Finish: Black Anodized
Type: Assembled
Sights: None
Barrel Description: N/A
Receiver Description: 7075-T6 Aluminum