[Nineisfine]

I purchased a new P99 (olive green if that makes a difference) several weeks ago. The gun functions flawlessly and is quite accurate, however...when I insert a full mag, it takes a LOT of pressure to get the mag to click into place. This is not the case with an empty or even partly full mag. Also, when the full mag is in place, it takes an EXTREME amount of pressure to release the loaded mag. I have fairly strong fingers and I simply can't release the mag without using both thumbs. I guess this is good in a way because a full mag will never accidently drop out on me but I from reading other posts on this site it seems most of you don't have this "safety feature" on your guns. Any advice? If it were a 1911 I could take it apart and adjust the mag release, but don't know where to start on this polymer wonder nine. I have tried four different mags and the problem is the same with all of them. When the mag is empty the mag release works easily.

 

[Yelf]

Are these 10 round mags? Mine are certainly more stiff with a fully loaded mag but I can release it with my index finger and I always slap the clip in place when replacing.

 

[Nineisfine]

Yes, they are the factory ten round mags. Obviously, the full mag is putting the release in a bind somehow but I don't know what to do to fix it.

 

[NM_P99]

You mag springs probably need to break in a bit.
Try inserting the mag with the slide back (open) for a while until the mag springs break in good.
After that, it should be much easier to load up 10+1.
I have 2 P99's and 7 10 round magazines, and neither has needed that much force to manipulate the mag release, my wife has never had a problem with hers.
But at the range I always load up 10 rounds and insert with the slide back, basically 9+1.
For carry I use 16 round mags, loaded 15+1.

 

[macman10]

Since I got my P99 I've carried the full 10+1 in it. At first it was hard to get the full mag to release, but it broke itself in.
SHOOT IT.