Sons of Guns (2011)

S2E14 The Hogzilla Gun

Will and the RJ team develop a powerful, silenced AR designed for stealthy night hunting to eliminate the wild hogs wreaking havoc on Louisiana farmland. Meanwhile, Charlie hits the jackpot when he discovers rare pinfire ammunition for a vintage French revolver, which is 150 years old and valued at $7,500, with a capacity of 20 rounds.