LR/SR PMAG 20 cracked feed lips

[Hogwylde]

See photo of crack on right side, just below the feed lip. The gun has less than 600 rounds through it. I have 11 twenty round PMAG 20's and some PMAG 25's for my AR-10A. All 600 rounds have been spread out through them all. Even assuming that I used this ONE magazine for all 600 rounds, I'm thinking it shouldn't have failed with this many rounds over the 18 months since I purchased this rifle/magazines new from the dealer.

 

[Mgderf]

I do not care for polymer mags.
That's just me.
YMMV

 

[calcot7]

I have had the Thermold mags do this but haven't seen it on any P-mags.

 

[M67]

Have had polymer 308 mags since my first 308 AR 8-9 years ago and never had an issue. I'd contact the manuf.

 

[Vigilant]

Magpul will make I right. Another thing to consider/remember, mags are an expendable item, and they do need replaced.(though this one seems to have failed early)

 

[MohawkSlim]

PMAGs don't fail. The internet said so.

 

[Gabriel]

I've seen three or four Pmags do that. Magpul will replace it.

 

[grunt soldier]

buy lancer l5 AWM mags. best of both worlds. magpul is solid company though they will even pay for your return shipping most times

 

[phylodog]

I'm not sold on Pmags but I have a few and they've run fine. Are you keeping them fully loaded? If so, are you using the dust cover to take pressure off of the feed lips?

 

[FishnHunt]

I had the same thing happen on a couple FDE Pmags. The feed lips on mine completely sheared off, in the middle of a 3-gun stage no less. That was fun. Magpul made it right and sent new mags fairly quickly if I recall correctly.

ETA: My post about it: https://www.indianagunowners.com/forums/long-guns/338890-pmag-broke.html

 

[mammynun]

I do not care for polymer mags.
That's just me.
YMMV

I get where you're coming from, but I look at it the opposite way. Having bent or dented many USGI mags to the point of uselessness, I now prefer polymer. Either can fail, they just fail in different ways. As mentioned, they're disposable.

You make your choices and take your chances.

 

[sig1473]

I get where you're coming from, but I look at it the opposite way. Having bent or dented many USGI mags to the point of uselessness, I now prefer polymer. Either can fail, they just fail in different ways. As mentioned, they're disposable.

You make your choices and take your chances.

Agreed. That's why I have both. I actually prefer USGI(Colt, NHTMG, Okay) aluminum nowadays, but I have an equal mix of both.

 

[halfmileharry]

I've had a couple of the Gen2 crack but so far the Gen 3 have been excellent. They all fed great.

 

[Gabriel]

I get where you're coming from, but I look at it the opposite way. Having bent or dented many USGI mags to the point of uselessness, I now prefer polymer. Either can fail, they just fail in different ways. As mentioned, they're disposable.

You make your choices and take your chances.

I've bent up enough metal mags that I just use Pmags now. I haven't had a failure with any of mine yet, but as I stated earlier, I have seen three or four with cracked feed lips at work.

 

[tbhausen]

Lancers are the best of both worlds--polymer bodies with Teflon-coated steel feed lips.

 

[17 squirrel]

I'm going to call Uncle Sam and complain about all these crappy steel and aluminum Surplus M14 and M16 20 to 50 year old magazines that i have that have never had split or cracked lips.. Low bid junk...

Maybe those plastic magic magazine lips need some Abrevia rubbed on them.
But you have to apply it as soon as you see a crack appear..