AM-15 Stripped upper reciever

The AM-15 Forged Upper Receiver is CNC machined from 7075 T6 aluminum to meet Military Specifications and Standards. - This AM-15 Upper Receiver is 'MULTI-CAL' and is compatible with all calibers encompassed in the AR-15 platform with the exception of big bore calibers. - Caliber Multi-cal - Upper Receiver Material Forged 7075 T6 Aluminum - Receiver Finish Type 3 Hard Anodized Black - RF-85 Treated Non-treated