Anything special about installing a bottom bolt release trigger guard?

SA DBM 4.40" spacing In a B&C tactical medalist stock.

New factory bottom metal and bottom bolt release trigger guard.

Everything goes in, although it is tight but either the bolt release won't depress far enough to allow the action screw to go all the way in or it depresses completely won't return to its normal position.

Spring was out of whack on the latter instance but can't figure how to adjust the trigger guard or bolt release.

I've tried it with the bolt in, removed or to the rear.