There are two different tools for this. One for each bolt.
The remmy can be done without the tool but it is tricky. For the remmy you need to wrap the bolt in a cloth and stick it in a vice
(be carefull not to damage anything) and use something to pull back the ratchet on the side of the end shroud. At the same time unscrew the shroud and it should all come apart.
Would be easier to buy the propper tools though. There not to expensive.
This is the place i got mine from. Its the firing pin removal tool.