I have a RIA Government A-1 .45 and when you pull the trigger it stays pulled or very slowly creeps back where it can be pulled again. It had been working fine and this problem just showed up after carrying it to a gun show. When leaving I had them cut the zip tie off and the guy mentioned the hammer wouldn't drop. Didn't pay it much mind until I got to the car. Soon realized the trigger was all the way in and I had to pull it back out to firing position. Then it dropped the hammer just fine but it stuck again. I'm not familiar enough to start disassembling things but I did spray some oil on the trigger and the parts you can see below the feed ramp with the slide open. Can't say it really made any difference. It will return most times when pulled but does so very sluggishly and sometimes still sticks. Anyone else ever run into this problem? Wondering if the trigger assembly is somehow crudded up and it just needs cleaned or if a spring problem? Would appreciate any advice.