To bind weapons u wanna do - Bind <key> "use <weapon name> "
to get the weapon name go on the spawn menu and search up the gun name then right click and press "copy to clipboard"
E.G bind x "use m9k_scar "
You can also use this to bind medkit/swepts
e.g. Bind caps "use weapon_medkit " u can also use ; on the end of binding to make it say smth e.g Bind caps " use weapon_medkit ; say take this medkit "
hope this helped