This is my first AR, I probably don't know what I'm talking about. When I grip the handgrip and wrap my index finger around the trigger, my finger is on the first knuckle. I really want the pad of my index finger past the second knuckle on the trigger. This is way too short for me. When I try to back my hand off the grip to give my index finger a little more room, I can't get my hand up in it, I have to my move my hand back down off it. It's not instinctive. I would like to have a lot more material to wrap my hand around so I could back my index finger off the trigger and try to put the pad of my finger on the trigger in a more natural manner. I don't want to wrap a half inch of duct tape around the hand grip to make this more natural. What else should I try?