WAsbury mechanism
WBore evacuator
WCaliber (artillery)
WCascabel (artillery)
WContraves Cora
WCharles Ragon de Bange
WDirector (military)
WENIAC
WFire-control system
WGun barrel
WHoldfast (artillery)
WHydraulic recoil mechanism
WIron sights
WKoehler Depressing Carriage
WLinstock
WMuzzle brake
WPrism paralleloscope
WRangekeeper
WReticle
WRifling
WSight (device)
WSmoothbore
WSpotting rifle
WSqueeze bore
WTampion
WThermal sleeve
WTrunnion
WWelin breech block