SARS Rails are manufactured from 6061 T6 aircraft aluminum, they can be made from other materials upon request. The SARS 1913 Rail are manufactured according to Mil-Spec and Hard Anodized in a Matte Armor Black. All SARS parts are manufactured to 1913, Picatinny rail Standards. All in stock products are shipped within a 24 hour period; excluding weekends and holidays.