A laser projection insert including a laser module disposable in the chamber of a simulative training firearm. An activation cap includes a printed circuit board and a photo sensor disposed on the printed circuit board. The photo sensor is configured to receive an optical signal from the simulative training firearm. The activation cap is configured to control the laser module to emit light. A power source is disposed between the activation cap and the laser module. A first part of the power source is positioned on the activation cap and a second part of the power source is positioned on the laser module.