Originally Posted by notom
If its a retailer that bringing it in ok but if its in the classifieds then its a used item even if unopened. I can't speak for the KWA as I've never used the cansoft version only the full metal. I can say that the R27 had the best blowback and shot the farthest out of the box of any of my gbb's. But I still don't think its a good price. I have bought far better gbb's than the R27 for around $250. If I were you I'd keep looking.
how do you use it if it is NOT OPEN.
I would take army over KWA if those are my only choices simply because of TM compatibility.