The super reduced weight of the L7v2 along with its Hand Polished surfaces, Teflon Impregnated REDUCED DRAG SURFACES, High flow face, and air passages make it the best Ion bolt available. The L7v2 is the latest in Ion bolt technology. It takes speed, accuracy and reduced kick to the highest level in paintball. It literally makes your marker shoot smoother than other marker. This includes markers that cost 5 times more than the Ion. Includes a complete bolt system along with the Ion Ball Detents. If you are looking for the highest performance out of your marker this is the kit to get.