The Infallible was a .32 ACP calibre handgun manufactured by the Davis-Warner Arms Corp during the early 20th century.

Warner Arms Corp. was established in Brooklyn in the early 1900s to import the Schwarzlose pistol from Germany. When they could no longer import the Schwarzlose, Warner Arms began manufacturing the Infallible about 1914. Their trademark was "Blocks the Sear" and was a reference to the way the safety worked.  In 1917 Warner merged and became Davis-Warner Arms Co.

They had one serious drawback, at the back of the gun, it has a small lever, the other a push through pin. If the shooter disassembled the pistol and forgot to turn that lever the right way, or forgot to push the pin all the way in, the breechblock would be stopped only by a small projection and could come back in his face. The guns were not "infallible" and in 1919 operations ceased. Though never popular, the pistol is becoming a valued collector's item.