If you need to replace the extractor or want to adjust an OEM extractor, getting the plunger to depress is a little different than some other rim fire... the Tandemkross video was very helpful... you need to push the firing pin retaining pin 1/3 the way out to make room for the extractor plunger... then push a small punch in from the bolt face to  depress the plunger... I did not have a small enough pin punch, so ground the point off a sewing needle, clamped it mid way in a pair of ViseGrip pliers to reduce flex of the pin, and carefully pushed the plunger from the bolt face in the space next to the extractor.. worked well... just a tip for the DIY folks... regards

I got one of these for my MK3 22/45 lite. Helps me break it down for cleaning and for upgrades.