The Gunsmoke crew, led once again by Scott, builds a massive avalanche-triggering gun with two interchanagable barrels for a 50 calibre and a 20mm bullet. A female shooter orders an AR-10 with a grenade launcher to take back to her women's pistol league.

A Navy Veteran commissions a Nock gun. Meanwhile, a Florida Gator hunter orders a rifle powerful enough to take down alligators. Later, Rich and Kurt meet with a weapons designer to purchase an arsenal of custom, indestructible ARs.

A young, fast Cowboy Action Shooter commissions Gunsmoke to build him a competition Winchester rifle and challenges Jon to a shoot out. Meanwhile, Paige helps an exotic animal rescuer custom order a S&W MP and takes his project from sale to reveal.

The Gunsmoke team creates a Civil War style double barrel cannon that is much safer than its failed historic prototype. Rich and Renee help a couple become more comfortable with their matching revolvers. Scott and Brian have a friendly competition.

The Gunsmoke team prototypes a .338 Lapua Magnum sniper rifle for the local police department and overhaul an hierloom Remington shot gun. Rich and Renee negotiate for and test fire a cache of different types of machine guns worth $100,000.

The Gunsmoke team prototypes a new helicopter M-16 machine gun as a new business venture and rebuilds a 44 Magnum for a British ex-pat. A group of professional BMX stunt riders challenge Rich to a wager for some 1911s.

The Gunsmoke crew build a special motorcycle shotgun for a retired New York firefighter who served during 9/11. They customize a 1911 for a retired Air Force customer who has lessened strength in his hand after an accident.

The Gunsmoke team builds a pro bull rider a most unusual wearable gun. A teacher orders an M1 Garand to honor his grandfather who fought at Iwo Jima. Rich assesses a cache of Texas Ranger guns and memorabilia worth more than a half million dollars.

The Gunsmoke crew modifies a Winchester into the perfect "truck gun" that is functional with safety features and designs a special scope on a 5.7 FN for a target-shooting competitor. Kurt is under the gun to heavily engrave gun gifts for a charity event.

An old timer comes into Gunsmoke looking to get a replica made of a Buntline Special the same gun used by Wyatt Earp. Then Rich and Renee head off to the Smith and Wesson corporate headquarters to make the biggest deal in Gunsmoke history.

The Gunsmoke crew recreate an 1883 Howdah pistol. Gunsmiths Jon and Doug have a friendly wager -- winner presents a Super Bowl champ with his custom rifle. Tempers flare when Kurt announces he wants to leave Gunsmoke to go to engraving school in Italy.

The Gunsmoke crew customize an 1898 Krag-Jorgensen rifle. Rich's motorcycle club brother wants a customized Smith & Wesson 686 Plus for the Sturgis rally. Kurt's disagreement with Rich over whether he can leave for engraving school comes to a head.

Rich's team builds a Civil War era-style cannon that shoots more easily obtained projectiles: bowling balls. They customize a Ruger Mark III pistol for a young sharpshooter who aspires to Olympic gold. A philanthropist drives a hard bargain over his European rifles.

The Gunsmoke crew accepts the challenge to build a 12th-century style hand cannon. Rich teaches Kurt the art of negotiating when they fly out to inspect a huge collection of semi-automatics. Renee may get the last laugh over a customized pink 1911.

When a preacher comes to Gunsmoke for a custom made revolver, Rich must pull everyone together to get it done fast without Renee shutting him down for going over budget. Kurt is doing everything in his power to get a raise that Paige thinks is hers.

The Gunsmoke crew creates a Wyatt-worthy anniversary gift for Renee: an engraved, silver, 10-carat diamond encrusted 1911 pistol. Rich delivers a customized shotgun to a buyer's castle and an Oliver North-autographed AR-15 to a high roller at a hanger.

Rich and the Gunsmoke team build a customized scout rifle for a wounded vet so he can hunt again, despite his limitations. Kurt joins Rich on a sale to an investor looking for iconic 1960s guns. The team also tricks out a car 007-style and Paige wants a tattoo!

The Gunsmoke team builds a 10-barrel, black powder volley gun. Rich strikes a hard bargain with a man selling a collection of WW1 and WW2 guns and takes a gamble when he trades a Henry rifle for two Civil War pieces. Paige gets an intense lesson in DCOA.

Tempers flare at Gunsmoke when gunsmith Scott takes the lead and manages the crew as they build a Zombie Apocalypse gun based on a Henry made Mare's Leg. Rich, Kurt and Paige fly out to a client's home to test fire a Vietnam War-era rocket launcher.

Firearms expert Rich Wyatt and his team of gunsmiths set out to build a 19th century "Knuckle Duster" from a block of metal. Paige and Kurt Wyatt compete to sell the most guns and Rich tries to get an eccentric rancher to part with his Winchester rifles.

In the season finale, Kurt takes the lead on a client's customized .50 Cal rifle. Rich and Bob examine two very rare Colts. The gunsmiths face off against the sales team to see who's the better shot.

Rich barters for two pieces of history: an M1 Garand used during D-Day and a Luger used in Howard Hughes'1930s film "Hell's Angels." Meanwhile, the Gunsmoke crew races the clock to modify a hunter's favorite rifle for Alaska's deadly big game.

A customer commissions a custom tommy gun to be used in his 1920's themed competition shootouts. Meanwhile, an avid hunter requests a light weight 50 cal.

Rich and the crew recreate an 1866 Winchester Yellow Boy for a cowboy client. Renee and Paige bring out an arsenal to host a special shooting event for local firefighters.

The Wyatts and the Gunsmoke crew are back, building a huge, historical punt gun. Rich trades pistols for some personal Elvis memorabilia. He calls in some special help to deliver and test a 1911 for an Army 10th Mountain Division veteran.