You've seen some of the country's best marksmen compete in the hit HISTORY series "Top Shot". Now, H2 brings you "Top Guns", which highlights the types of weapons those sharpshooters have so skilfully mastered. Each week, host Colby Donaldson will be joined by two expert marksmen in a true test of firepower. They will lock and load three iconic weapons and decide which one outshines the others through some healthy competition. Along the way, viewers will discover the amazing history behind such famous firearms as the Kentucky flintlock, the M14 and the legendary Colt .45 revolver. Find out which of these historic weapons prove to be the world's "Top Guns". (Source: The History Channel)