W.41 Short
WBond Arms
WCharter Arms
WCobray Company
WColt's Manufacturing Company
WCOP .357 Derringer
WDavis Industries
WDeer gun
WHenry Deringer
WDerringer
WDoubleTap derringer
WFP-45 Liberator
WFreedom Arms
WGarrucha (pistol)
WHigh Standard Manufacturing Company
WNorth American Arms
WNorth American Arms
WDerringer
WPocket pistol
WRemington Model 95
WRemington Rider Single Shot Pistol
WRemington Zig-Zag Derringer