This upgrade is a must for a Tippmann Sniper. It will fit on the 98 custom, model 98, Custom Pro, or A5. The rail is longer and taller giving you more of a handle. The top rail is a standard weaver rail. Now you can add on a flashlight, scope, red dot, etc. Made out of high quality aircraft grade aluminium.SIGHT RAIL WILL NOT FIT 98 CUSTOM/PRO PLATINUM SERIES MARKERS