You Can't Go Wrong - CMC will refund the purchase price of any unaltered drop-in AR-15 trigger module within 30 days of purchase. Offer applies to purchases direct from CMC or participating dealers only. Products returned from dealers to CMC for credit must include proof of the customer's purchase. Refund offer does not include cost of shipping, handling, or other ancillary charges. Participating dealers are responsible for refunding their customers. CMC will be responsible for refunding the CMC dealer upon receipt of the returned products.