Car windows are sealed against the rain with a soft, flexible rubber gasket. Striking the side window of a vehicle with a baton is ineffective. The tempered glass of the window will absorb the baton strike as the molding flexes. Center punches have been used by officers to break car windows. However, when a punch is needed, officers often find that it has been left in the patrol car or duty case. During a crisis there is no time to go back and look for them. When using a center punch, the officer stands in front of the car window presenting a ready target. Most dangerous is the fact that the punching motion carries the officer's hand through the window and propels glass at the occupants. Finally, a center punch has no effect on the front windshield of a car. ASP's solution to these window-entry problems is its BreakAway Baton Subcap, which consists of three ground ceramic pins that are set at precise angles in a domed geometric. During daily use, the pins are covered by the existing baton cap. Removing the cover cap exposes the pins. Standing to the side in a tactically superior position, a light tap will disintegrate the side or back windows of any car. The glass falls straight down with no danger to the occupants. Striking in a circle, the officer can punch a hole in any windshield. Low profile. Inexpensive. Allows the use of any accessory cap. May be safely used for closed mode strikes.