I bought a used 19 gen4 at a LGS yesterday. It looks new with trigicon hd sights and the tag said ghost trigger. I ran 100 rounds through it today and it ran fine. The trigger is at 5.5 pounds. It has some travel, then a wall and short break. If I dry fire it without the mag, sometimes it does not break without a firm press at the end of travel. If the mag is in, it is better. What do you think I should do? Thankyou!