This package features the Tippmann Sierra Marker platform. First we upgrade the stock barrel to a J&J Performance 16" Commando Barrel. The ultra slick inner surface helps improve accuracy and air efficiency while reducing the noise signature of the marker. The Commando barrel also features the Commando Muzzle Break adding to the realistic look of the marker. Next we tackle optics, we include a durable all metal riser rail to make using any optics with a paintball mask on easier. Then we include a rugged "large tube" style red dot sight to help broaden your field of view creating a larger window to capture and track your target. We finish off the kit with a front grip that provides you with added comfort  and accuracy while clearing objectives.