AZwest16 Report post Posted February 4, 2014 16.5" Black 5.56/.223 Upper Receiver (M-Rail). This gas piston upper receiver assembly features the new 2013 M Rail. It comes with two 5-slot and one 12-slot detachable rail section. This Upper retails for $1600. I'm going to list this for $1200. For a $100 more I will throw in a POF AR trigger that is still in its original packaging! Call or text 6236876532 Regan Share this post Link to post Share on other sites
AZwest16 Report post Posted February 4, 2014 POF trigger Share this post Link to post Share on other sites
