The Model 336A was a lower cost model than, say, the 336C, mainly due to cosmetic differences. The A, for instance, has a hardwood stock, rather than walnut. I believe the mechanics are the same. I am not aware that a 336A has any collector value. When new, they generally sold for $400 or less. I paid $295 for a used one a couple of years ago. Go for what you can get, but most sellers of AR types would say you are trading up, and won't want to give you more than $200 in trade, IMHO.