It doesnt have much in common with the Mark 2 bolts.If it comes apart similar to the Savage MK II, this video might help.
https://www.bing.com/videos/rivervi...96C8E97E6C63FB22835196C8E97E6C63&&FORM=VRDGAR
Keep in mind, the Lakefield Mark I and a Savage Mark I, should be the same bolt.
The Savage Mark II or the Lakefield Mark II bolts should be very similar in bolt design, compared to the Mark One Models.
Hope this helps!.......![]()