#html-body [data-pb-style=PO446RT]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}These retro uppers feature a grey anodized slick sided upper receiver with a 20" parkerized 5.56 NATO barrel. The rifle length gas system and C158 BCG are paired to ensure smooth cycling and maximum durability. These complete uppers are hand fitted and assembled right here in the United States of America.