If the stuff you are putting on says it will adhere to bare metal fine but I doubt it will, in most cases a good primer is a must if you want the paint to stick.
2013 WRANGLER SPORT 2 DR., V-6 ,AUTO,HARD TOP
)1994 Jeep Wrangler 2.5L, Bestop top
/w steel half door and slider windows
5 speed, 2.5" lift, 31" tires,rack lights