The trigger assembly does come off you just have to knock out the front pin on the trigger guard and remove the two screws in the block, if you do this be carefull not to strip the screws when you put it back together,I put just a tad of blue locktight back in the screw holes because the back screw only goes in a few turns. When you theknock out the pin be sure to put it back in the way it came out because it has lock groves on one end of the pin. You have to have the right screw driver and a flat tipped punch to do the job. If you do a lot of shooting there will be lots of powder residue that needs to be removed from the trigger assembly and under the barrel that if not removed will corrode your firearm. If your not carefull you will damage the assemble doing this so if your all thumbs don't mess with it, just clean what you can see.