4 ms·Aren't pistol/gun types typically plutonium? I though 235 needed the fancy explosive lenses.by buildbot 3y agoAren't pistol/gun types typically plutonium? I though 235 needed the fancy explosive lenses.ridgeguy 3y agoNo, U235 weapons can be the 'cannon' type. That was the type of bomb used on Hiroshima.buildbot 3y agoOops you are totally right. I got them switched!