How do you make the best even better? Simple, you listen to what your customers wants and you make it happen. Easier to maintaindone! Interchangeable parts with the original tool.done! Less parts in the triggerdone! No composite parts in the trigger done! Add a captor hookdone! The NV83A5 is not only a tool for the pro its also the tool that provides an answer to pros needs. Relying on the same cylinder valve drive system as the original NV83A, the NV83A5 offers both a rapid response and some serious driving power. The side load pop-out magazine only adds convenience to an already awesome tool.