I have an older model 20 gauge 1100, that I cut off the stock some 30 years ago. Want to replace it with a recently purchased used stock. Looking at the stock bolt cap, it is slotted and has a hole in the center under which is a longitudinal pin that will depress about 3/8". It has been a long time since I took the stock off, and not wanting to tear anything up, (I have learned not to force things in my later life), what is the proper method to use in removing the stock bolt? I used the search feature to no avail, plus I looked up the schematic on the Remington web site, that was no help either. Any help would be appreciated.