Suzuki uses the two-tone Sigma during the raid in "Maternity Liv" (S1E07).
Tarus Judge
A Tarus Judge can be seen in a video reviewed by Babineaux.
Beretta 92FS
Major Lilywhite (Robert Buckley) uses a Beretta 92FS in preparation to defend himself from zombies.
Glock 26 (Dual Tone)
Clive Babineaux (Malcolm Goodwin) discovers a Glock 26 equipped with a suppressor at a victim's house. Blaine may have also used this gun to murder two of his own men attempting to betray him in "Liv and Let Clive" (S1E04).
Smith & Wesson Model 686
The suspect in the Episode Pilot is pictured with a Smith & Wesson Model 686
COP 357 Derringer
Some henchmen are armed with a COP 357 Derringer at the butcher shop
One of the guns Major uses to attack the Butcher shop except the one he has is made with a wood grip
Smith & Wesson Model 629
Walther P88
The henchman in the butcher shop uses a Walther P88. It is somewhat likely Blaine uses the same gun during his murder of Lowell.
Shotguns
Hawk 97-2
Major Lilywhite (Robert Buckley) can be seen with Hawk 97-2 shotgun. The one he uses however does not have a stock.
Mossberg Maverick 88
Detective Clive Babineaux and Detective Suzuki can be seen with the Maverick 88 in "Maternity Liv" (S1E07).
Rifles
Remington 760
During the raid at a house in "Maternity Liv" (S1E07) a woman is seen armed with a Remington 760 rifle.
Colt M16A2
In "Dead Rat, Live Rat, Brown Rat, White Rat" (S1E12) the dealer shows his guns to Major
Sniper Rifles
Nemesis Arms Vanquish
A Nemesis Arms Vanquish can be seen in the hands of Olivia Moore (Rosie Mclver) while attempting to assassinate Blaine Debeers. The one Liv uses is equipped with a suppressor, bi pod, and a scope.