I installed mine fairly easily. So what I did first was I removed the top cover/rail, then I backed out all the set screws that tension against the barrel. Then I removed the 2 pieces up front that made up the barrel bracket.I then screwed them together around the barrel then screwed that assembly into the front of the bottom section of the forend. from there I backed the forend up all the way into the trunnion, screwed in the screw into the trunnion, and installed the top cover. I them tightened everything up, snugged up the set screws (after puttiing a shim between them and the barrel) and i