American Guns had ten episodes between October 10, 2011 and December 19, 2011, and an item signed by Oliver North was in episode 5.
Rich gets to hand deliver an AR-15 to a customer which has been autographed by Oliver North. The shop secretly manufactures a custom 1911 pistol for Renee, covered in diamonds, as an anniversary present. Rich visits a buyer's castle to deliver a custom made shotgun. 
