From what I recall, originally the reissues were not destined for TRU, but for other retailers like Walmart, who eventually rejected the line, possibly due to the sales-limiting 'Adult Collectible' disclaimer. Like it or not, retailers are less likely to stock collector-type toys if you flog it to the retailer as a collector's item.
Even so, I also believe toy laws apply across the board, so you can't have firing missiles that are too small by the standards of modern toy safety just because your product is meant for adult collectors, but I may be wrong.