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Fix for movement between receiver and frame

1K views 9 replies 5 participants last post by  MarkB 
#1 ·
I picked up my new MK IV Hunter. My lgs hod one but sold it before I could get it. The buyer failed the background check for some reason so the sale was canceled and I was able to get it.

I noticed that there was some small horizontal movement between the receiver and the lower frame on my Hunter. Not much but it annoyed me. I looked around and I found this thread over on RimfireCentral.com. The posting was started by barney4174. The cause of the movement in his and in my MK IV was that the two dog ears on the bolt stop were a little high and that prevented the latch from pulling down the receiver far enough to lock in place with no movement. Removing just 0.010" from both the front and rear dog ear allowed the latch to fully seat the receiver with no movement at all.

A cause of receiver looseness - RimfireCentral.com Forums

Moderator: Please delete this post if this is not allowed.
 
#3 · (Edited)
Actually, you can see the areas I filed in post #9 in the Rimfirecentral.com post I listed above. Just click on the links in his post and the photo will come up. I did the same area barney4174 did on his bolt stop. I have already re-blacked my bolt stop so his is easier to see. Also note the comment about how the pin retainer spring goes in in post #8 if you should remove it. I had to use a small 1/16" punch to hold down one of the spring arms when I re-inserted the pin in the frame. I only pushed the pin out just far enough to remove the bolt stop and not to remove the latch.

Now the photos are shown without clicking on any link.
 
#4 ·
Posts that have hosted photos with links inserted do show the pics without having to click on anything. To view attached photos, you have to be a logged in member. Even with being a member, these photos will only show up as links if you're not logged in. Kind of a pain sometimes, because RFC will log you out automatically if you haven't submitted a post within some amount of time (maybe 1/2hr or so).
 
#5 ·
I'm guessing the movement might have something to do with the new design on the Mark IV that allows for easy and tool-less take down for cleaning.

Not that that makes it right or normal ....just sayin'.
 
#8 ·
A question for you. Can you see the photos I posted at the end of this post? I just want to make sure that what I did worked. I can see them on my PC but did I make them viewable as they were not unless you were logged into Rimfirecentral.
 
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