Daniel Defense has issued a recall to specific firearms manufactured between April 1, 2016 and March 3, 2017. A double fire condition has occurred with a single pull of the trigger the firearm discharged two rounds. This is a fault in the fire control group and Daniel Defense is correcting the issue at no cost to the consumer.
Here is the link to the Daniel Defense recall.
Follow the link, enter your serial number, and you will be informed in you need to send your rifle in for repair.