The idea is great but the attachment method is not very good. The triggers fit perfectly and snap as instructed, but the method they use to release the trigger depresses the trigger just enough to activate it. In FPS games he was either always aiming or always shooting without my intervention. To fix: I used another reviewer's method, sanding the front edge with a dremel and placing a small square of double-sided tape underneath. Hold the triggers down for a few seconds and they're ready to go. Improves trigger access in stressful situations with better response times.