Ok, your gate spring is out of place, had the same thing happen to me. Sometimes when it is put in, the relationship between the gate and the tip of the spring is off and the tip of the spring binds the gate instead of riding in the detent. You have to take the grip frame off. Remove the grips and cock the hammer. Put a small pin in the strut to hold the hammer spring and pull the trigger and release the hammer. You can then remove the hammer spring/strut. (remember which way the bend is) Remove the 5 grip frame screws (watch where the long one goes, it holds the hammer pin in place) Wiggle it around to drop the trigger return spring off the back of the trigger and remove it. Looking in the inside, you can see the gate spring. It is a long "U" shape. The spring holds and is also held in place by the trigger pin. Depress the gate spring and slide the trigger pin out. (you need three hands) You will probably find that the spring is slightly forward or backward from where it is supposed to sit. Make sure the loading gate is properly in place then pick up the spring and let it fall back into place. Depress it and put the pin back in (a three handed job again - unless you buy a nifty tool from Brownells). Check the loading gate and it should work normally. Reassemble the grip frame and you are done. Only tricky part is slipping the trigger spring back over the trigger. Takes longer to explain than to do. 44 Man