The primary extraction can is on the bolt handle and gets peened over due to the soft pot-metal used in the bolt handle.
Pot metal bolt handles?
WTF PLANET are you on?
Those bolt handles are made from steel.
I'm from a planet where people know the difference between different grades of steel, MIM injection molded vs forged parts, welded vs brazed, splined vs press fit.
Have you actually checked a few M700 bolt handles before you made this post? Do you actually think that all steel is the same?........................................DJ
Remember this is all supposed to be for fun.......................