I use them in my 6.5cm havak element.
I know it's been a year, but curious what ended up happening here. I have an element on the way and would like to use these 3 round mags.Do you have issues removing the MDT mag? I just got a chance to try it out and the mag sticks in my rifle so tightly that you cant get it out without significant effort. The PMag measures 3.095” at the widest point of the magazine catch. The MDT mag measures 3.120” to the widest part of the magazine catch. The width if the two magazines are very similar 3.056” and 3.057” respectively. It seems that the catch on the MDT protrudes too much to allow sufficient clearance for the magazine to function. I am considering sanding the magazine catch down a little but I wanted to hear if anyone had to do that. For what its worth, I am trying to use this on an original PH1 not the element.
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Thanks for the details!I ended up sanding the catch on the MDT down a little bit. It is fully functional but not with a little extra effort to get the mag to freely drop. I could probably sand it down a touch more but there isn’t a ton of meat holding the mag in place so I didnt chance it. For whats it worth, my havak is a PH1 and I had heard that Seekins made some minor tweaks to the later bottom metals. For a hunting application a the MDT 3rd mag is a no brainer. No more rattling magazine and improved handling ergonomics.
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