It's a HII region so a Ha/Hb (maybe Red) filter would help, but I've never visually attempted it so I can't say. Optical emission line fluxes of these (RCW/Gum) objects are also hard to come by so I cannot give you an estimate. Based on my data I would say it would at least be "very hard".
All you can do is try I suppose it shouldn't be hard too to locate being within the main formation of stars in Norma.
My Milky Way Map may help you
http://astroshed.com/milkymap.html
It's object number 12 in Norma.