All weapons used by responsible owners are anti assault weapons.
When I was an infantry squad member, at various times, I was qualified and carried the following weapons: M14 Rifle, M79 Grenade Launcher, M45 Pistol, M14 Fully Automatic Rifle and M60 Machine Gun and I never heard of an “Assault Pistol”. The pistol I carried when I lugged the M60 was a defensive weapon, not in any way an assault weapon.