BIG WINDOW AR 15 ASSEMBLED UPPER COMPATABLE WITH 450 BUSHMASTER,350 LEGEND, AND 9MM.
UPPER RECEIVER IS MACHINED FROM 7075 T6 ALUMINUM FORGING, HARD COAT ANODIZED.
30 DAY
BIG WINDOW AR 15 ASSEMBLED UPPER COMPATABLE WITH 450 BUSHMASTER,350 LEGEND, AND 9MM.
UPPER RECEIVER IS MACHINED FROM 7075 T6 ALUMINUM FORGING, HARD COAT ANODIZED.