sentences:  The pistol used a toggle lock system, which meant that when the gun fired, a two-piece arm rose and flexed as the gun recoiled, thus allowing the breech to unlock and release the empty cartridge case.DWM employed Georg Luger to promote the Borchardt pistol in military and commercial channels.The pistol was tested by the U.S. Navy as early as 1894 and later by the U.S. Army.