I was looking at lawton's web site at there 7500 dual port actions and in the description it states (right or left hand dual ports and dasher) I dont think i know what it means when they say and dasher. Can someone please explain. I am thinking that it means the size of the ejection port but i am not sure. these look like pretty nice actions. I saw one over the weekend and i was impressed. What the general thought on these? Thank you guys!! Lee