I'm a little confused, ar15 handguards all come off the same , pull the slip ring back , it might be hard but will come away , wiring is fine as the reciver has a cut out.
Fh off and then both pins and the Allen nut on the front sight and it will all pull away ( make sure to fully undo the Allen nut or it will mark the barrel.
Just pulled a 727 project out the cupboard, notice how it's my handguard twisting and the barrel nut it solid , when the lower is on no flex at all
20240621_213043.mp4