POOR MAN way to remove the rear portion of a remmy bolt is to :
1- pull down the cocking part (2 notch on the back) against a WOOD bench
2- when you see the notch on the side of the cocking part, insert a coin in it (quarter work good)
3- VOILA !! you are free to unscrew and screw the rear of the bolt as long as the coin is in place
I now have all the tooling to do it properly but this way, help my to clean and lub the spring and the inside of the bolt itself...
Sendero