u/AquaSquatch

Working through this build and have a question about this. I pressed the long end of my allen key into the charging handle and it went in fairly snug without any heating or effort. I have to twist it a bit to get the handguard on. At that point, I can press the knob on but either it's so tight that it's semi permanent (wouldn't be able to disassemble the handguard) or it's loose enough to remove and may not stay in place long term. Am I missing something? Should I be able to pull the knob off and on for disassembly?