The PCS US5 C.A.R.S. Rail is designed to provide additional height for sighting when using a rear stock on your marker. The US5 C.A.R.S. rail is designed to complement the US5Æs unique styling, but is perfect for all guns with 3/8" dovetail mounts including the Tippmann model 98 or A-5. The US5 C.A.R.S. also acts as a carrying handle to transport your marker while on patrol.