Available weapons

Revolver, Lt.

• 1872: https://en.wikipedia.org/wiki/British_Bull_Dog_revolver (( Clip 5 ))

Revolver, Hvy.

• 1870: https://en.wikipedia.org/wiki/Smith_%26_Wesson_Model_3
• 1872: https://en.wikipedia.org/wiki/Colt_Single_Action_Army

Pistol, Lt.

• 1892: https://en.wikipedia.org/wiki/Sch%C3%B6nberger-Laumann_1892
• 1893: https://en.wikipedia.org/wiki/Borchardt_C-93 (( Clip 8+1 ))
• https://en.wikipedia.org/wiki/Semi-automatic_pistol#History anything of 9mm (.357) or less

Pistol, Hvy.

• 1897: https://en.wikipedia.org/wiki/Colt_M1900
• 1911: https://en.wikipedia.org/wiki/M1911_pistol

Rifle

• 1871: https://en.wikipedia.org/wiki/Martini%E2%80%93Henry (( Clip 1 ))
• 1879: https://en.wikipedia.org/wiki/M1885_Remington%E2%80%93Lee (( Clip 5 ))

SMG

• not until WW1

Assault Rifle

• not until WW2

Sniper Rifle

• any breech-loaded or bolt-action rifle with a scope

Shotgun

• exists

Shotgun, Semi-auto

• first one in 1887 but does not really compare to modern semi-auto shotgun: https://en.wikipedia.org/wiki/Winchester_Model_1887/1901

Bows

• Crossbows and longbows obviously exist, but the compound bow wasn't invented until 1966