Lots of schools use BSN-prepared people as clinical instructors. An MSN would give you more options, of course.
Most every nursing faculty position, adjunct or otherwise, requires a minimum of two years of clinical experience; some schools require more than that and, of course, with just the two years minimum requirement, you would not be as competitive a candidate as others with more experience (although a lot of schools are so hard up for faculty that there might not
be any competition for an open position

).
I know there have been some previous discussions/threads here about the pros and cons of adjunct faculty positions. You may want to search for them and have a read.
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