weapon_knife (virtual)
-----------------------
weapon_knife_t
weapon_knife_ct
weapon_knife_css
weapon_knife_flip
weapon_knife_gut
weapon_knife_karambit
weapon_knife_pliers
weapon_knife_m9_bayonet
weapon_bayonet

hkp2000
-----------------------
usp_silencer
usp_silencer_off

m4a1
-----------------------
m4a1_silencer
m4a1_silencer_off