Robert Hawkins (Lennie James) is seen in several episodes using a Beretta Mini Cougar 8000 F with an Inox finish. This is also the gun he teaches his daughter Allison (Jazz Raycole) to fire in Episode 1.6, "9:02".
A Colt Python is by Jake Green (Skeet Ulrich) in Episode 1.2, "Fallout", and later wielding by a police officer in the next episode. He uses it again in several other episodes throughout the first season.
A .45 Colt Single Action Army (or, likely, an Uberti replica) is wielded by Emily Sullivan (Ashley Scott) in Episode 1.2, "Fallout", and used to kill one of the convicts posing as a police officer.
A Glock 19 is used by Eric Green (Kenneth Mitchell) in several episodes. This gun is also used by Jake in Episode 1.15 to shoot at the bandits from a moving truck. After the truck crashes, he tries in vain to reach the gun. A mercenary stalking Hawkins and Sarah in the same episode is also seen brandishing one.
Hawkins and Sarah use Heckler & Koch MP5K-PDWs with C-More sights atop claw mounts when they storm the house of the "old man" in Episode 1.15, "Heart of Winter". Hilariously, Hawkins' MP5K has its charging handle locked back throughout the episode, rendering it useless should he need to fire it (though he never does).
Ithaca 37 shotguns can be seen in a number of episodes. Jake and Eric use the riot model when they go to Rogue River's hospital in Episode 1.8, "Rogue River".
M4A1 carbine assault rifles are used by military personnel throughout the show, as well as the Ravenwood mercenaries. Hawkins is seen unloading a crate full of them in Episode 1.3, "Four Horsemen".
