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11/6/2008 6:57:36 PM EDT
what spring provides the pressure that pushes the empty mag out of the AR?  it looks to me that the mag spring itself is what "pushes" the empty mag out.  the bolt catch spring doesn't really provide the push to drop the mag right?  I am having a little trouble with a Cav MKII ejecting NHMTG mags.  I have trimmed the spring as suggested.  Other brand mags eject okay.

-frank
11/6/2008 7:01:40 PM EDT
[#1]
Gravity.
11/6/2008 7:03:51 PM EDT
[#2]
Quoted:
Gravity.


and the mag spring to a degree.
pressure on the bolt catch makes the mag "pop" out of the lower
assuming everything else in in spec.
11/6/2008 7:10:22 PM EDT
[#3]
Quoted:
 I am having a little trouble with a Cav MKII ejecting NHMTG mags.  I have trimmed the spring as suggested.  Other brand mags eject okay.

-frank



if its just that one type of mag, then i would probable thing that the problem might lay in the mag, it might be a tad on the tight side for your mag well
11/6/2008 7:17:57 PM EDT
[#4]
Quoted:
Quoted:
Gravity.


and the mag spring to a degree.
pressure on the bolt catch makes the mag "pop" out of the lower
assuming everything else in in spec.


isn't the bolt catch static while it is holding the bolt?  i don't see that it moves at all with the bolt behind it.  i am just trying to make sure that trimming the bc spring didn't have an effect on ejecting mag.  
11/6/2008 7:22:39 PM EDT
[#5]
Quoted:
Quoted:
 I am having a little trouble with a Cav MKII ejecting NHMTG mags.  I have trimmed the spring as suggested.  Other brand mags eject okay.

-frank



if its just that one type of mag, then i would probable thing that the problem might lay in the mag, it might be a tad on the tight side for your mag well


you're right, this one brand is just too snug in the well.  same mags work great in RRA, Armalite, DPMS, and Bushmaster lowers.  
any of you guys have trouble with NHMTG brand mags?  i thought they were supposed to be pretty good.

thanks.

-frank

11/6/2008 7:41:45 PM EDT
[#6]
All my NHMTGs (and everything else I've tried) drop fine *Ameetec & GTS lowers*

I think the pop comes from follower/spring pressure against the bolt catch.
The bc is not forcing the mag downward. The mag spring is releasing compression.
A good mag with no guts in it will simply drop out under its own weight.
11/7/2008 3:30:31 AM EDT
[#7]
The only mod you should do with a mag release is screw it in or out if its not releasing mags or not holding them.  The follower touches the bolt catch.  Its the mag spring thats pushing a mag down when released.
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