They used the same item and forgot to change the description. It's not as much a glitch as it is an oversight.
thanks im on my 30th play of this game never found it befor makes me want to put fallout 3 back in and play that cant help but think fallout 3 is better than nv in lots of ways items in nv are missing somthing like the ranger veteran armor should have a unique variant with the helmet having night vision PER +1 , crit. +10