To install or remove the buttstock you must remove the comb. To do so, unlock the 1/8” hexagon head allen screw at the rear of the comb and turn the forward adjustment clockwise while raising the rear of the comb with your fingers until the rear of the comb clears the vertical steel post. (You do not need to remove the recoil pad from the rear plate or remove any screws to remove the comb.) Remove the T-handle hexagon key, turn the comb 45 degrees right or left, push forward and lift the comb off of the stock.
The rear assembly including the recoil pad may then be pulled away from the forward portion of the stock in one piece.
The recoil reducer and forward end plate may be removed in one piece by taking out three phillips-head screws (four screws used in some stocks). You will then have access to the stockbolt for installation or removal of the buttstock.