Your MSR has already been inspected by our expert craftsman at Colt’s headquarters and, if necessary, the proper upgrade has been completed. You do NOT need to send it back to Colt. Thank you for being a loyal customer and we apologize for this inconvenience.
If you need to check the serial number of another Colt MSR, please click here.
If you have any questions and would like to speak to a Customer Service Representative by phone, please call Colt at 1-800-971-3216 Monday through Friday between the hours of 8:30 AM and 4:30 PM EST.