Official STS store - STS encourages you to stop by your local dealer (see dealers), but if one is not available, you can shop online.  Browse through the products below. 

ALL ORDERS ARE SHIPPED U.P.S. NO EXCEPTIONS. ALL CUSTOMERS WHO PURCHASE AN STS MUST REGISTER THEIR STS'S. INCLUDED IN EACH PACKAGE IS A REGISTRATION CARD. THEY CAN REGISTER THROUGH THE MAIL OR THROUGH EMAIL (AS LONG AS THEY PUT DOWN THE NUMBER WRITTEN IN RED ON THE BACK OF THE CARD). "ALL" INFORMATION IS REQUIRED. PLEASE DO NOT LEAVE ANY BLANKS. THIS WILL VOID THE WARRANTY. WARRANTY IS LIFE-TIME ON ALL ALUMINUM PARTS TO THE "ORIGINAL" OWNER AND ONE YEAR ON THE EDS STOPPERS. ON THE CROSSBOW STS'S, THE EDS STOPPER HAS A 30 DAY WARRANTY. THE WARRANTY APPLIES TO THE ORIGINAL OWNER ONLY....NO EXCEPTIONS. NO REGISTRATION, NO NUMBER, NO WARRANTY.