What is the coldest temp you have run a P-Mag in?

AR/M4 AR Technical Discussion
1

All right, I’m Canadian, and the cold is never far from the mind of a Canadian.

I recently watched a discussion on a Canadian forum where someone complained loudly about the Tavor, which is getting to be a popular (if you can afford it) rifle up here.

There was a lot of bellyaching which I did not take very seriously, followed by a comment which interested me: P-Mags not surviving the cold.

Well, I was skeptical. I have a hard time believing the guys at Magpul thought of everything except winter.

But I guess most of the guys I know who run P-Mags are in the southern US, not Alaska, that’s secretly part of Canada, and don’t get -40 winters. I don’t know anyone in the Dakotas, either.

So what is the coldest you’ve ever run P-Mags? How do they do at forty below? If you drop them on their feed lips in the cold will they survive?

I assume they are fine but I am curious, anyway.

2

Give me a few months and I’ll write to tell you. It’s been unseasonably warn in ND so far–I expect that will change.

3

Well, I’m sorry to say I hope it does!

I camped in ND last December and January and if that weather doesn’t break a P-Mag nothing will.

4

-10 to -20, somewhere in there. No real abuse, just shooting and dropping.

5

-10 to -15 degrees is the coldest I’ve ever subjected a P-Mag to so far. Did shoot several mag fulls, inserted/ejected mags, reloaded, etc. No issues.

FN in MT

6

0 to -5° or so. Not a problem at all.

7

-10 for me too… also no problems.

https://www.m4carbine.net/showthread.php?t=15657 same topic… magpul, as of 6/08, maintains testing to -30 “with no real problems”

8

Dunno about P-mags, but Lancers are designed to function at -50. The coldest I’ve “Bump-fired” my Lancers is -35 dgrees Farenheit. Flawless.

9

Pmags work just fine at -35 degrees

10

Same for me.