Poor design - Viridian Weapon Technologies Laser Grip

GRIP IS SMALLER THAN FACTORY GRIP, NOT AS CUSHIONED, ACTIVATION BUTTON IS DIFFICULT TO HIT AND IS A MOMENTARY SWITCH NOT CONSTANT ON OR OFF. MASTER ON/OFF SWITCH IN BOTTOM OF GRIP IS TINY MUST USE PEN POINT TO ACTIVATE. LASER IS BLOCKED IF FINGER IS NOT ON TRIGGER. BATTERY IS TINY THE SIZE OF A PENCIL ERASER LOOKS NON REPLACEABLE DOES HAVE CELL PHONE TYPE BATTERY BACKUP WITH USB WIRE.