With the help of some old and new collector friends, host Paul Shull sets out on a cross-country trek to try and settle an old argument: what was the best sniper rifle of WWII?

To military history collectors, it's the rarest of all machine guns. The FG-42 assault rifle, designed specifically for German World War II paratroopers, is so rare that they now sell for thousands of dollars at auctions.

Rebuilding a 20mm Oerlikon anti-aircraft cannon; a weapon that helped turn the tide of World War II.