I just received a mora .25 standard today and I immediately noticed the grip is not an AR grip, also the dwell valve is the old style, no knob. I was immediately disappointed but if i can get over those two items being different, is there anthing else i should be concerned about? Do I at least have the air hammer that doesn't require constant adjustments ? Or has that been updated as well on the new releases? That's one of the main reasons I bought this gun. Any help is greatly appreciated.