Possible Clues:

• Pocket pistol
• Up with the red with the bell for firing by hand
• Backtracking Liverpool player admits slipping, whence shot comes
• Revolting leftist holds possibly criminal pistol
• The German double weapon
• Weapon held by guard erring erratically
• The German caller producing a gun
• Yankee weapon or the European copy
• German article, doppelgänger's gun
• Small pistol used by gamblers in western films