Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
5/10/2014 3:45:17 PM EDT
recently bought some 20 rnd. gen3  pmags to try out.

this is my first experience with polymer mags and am glad to say they work just fine.

one thing, how do the feed lips hold up to long term storage with the full load of 20 rnds compared to steel / aluminum mags?

are they prone to spreading?

does using the dust cover help?

thanks.
5/10/2014 5:31:00 PM EDT
[#1]
..You're fine.
5/10/2014 7:06:08 PM EDT
[#2]
The dust cover depresses the rounds down a little so there is no pressure on the feed lips while the cover is in place.
5/10/2014 7:49:12 PM EDT
[#3]
I have only seen one complaint about feed lip spreading on the M3 versions.  But in the post the OP turned down Magpuls request to look at them for some reason.  The whole thing was suspect.  Other wise they are good mags and have been in use for a long time.  Plus Magpul stands behind their product.

And like Dennis2313 says you can put on the dust cover to take the pressure off.
5/11/2014 9:56:38 AM EDT
[#4]
Quote History
Quoted:
The dust cover depresses the rounds down a little so there is no pressure on the feed lips while the cover is in place.
View Quote

Magpul has said that the dust covers only purpose is to keep crud out

Edit: Either way though, I've never heard of a problem with Pmag feedlips spreading. And magazines are supposed to be disposable anyhow.
5/12/2014 3:07:19 PM EDT
[#5]
Feed lip creep with the PMAG is not an issue.  I have mags in my glovebox (LOTS of heat cycles) that have been fully loaded for over five years now with no Impact/Dust Cover on and they show no creep.
5/14/2014 6:13:43 AM EDT
[#6]
Quote History
Quoted:
The dust cover depresses the rounds down a little so there is no pressure on the feed lips while the cover is in place.
View Quote
I haven't had any issues with either gen2 or gen3 pmags.....With or without dust covers.
5/16/2014 7:36:02 AM EDT
[#7]
Quoted:
recently bought some 20 rnd. gen3  pmags to try out.

this is my first experience with polymer mags and am glad to say they work just fine.

one thing, how do the feed lips hold up to long term storage with the full load of 20 rnds compared to steel / aluminum mags?

are they prone to spreading?

does using the dust cover help?

thanks.
View Quote

Loaded them up, you won't harm them in any way.  They are built with extra head-space to make sure dust covers can be applied and/or for the user to be able to insert a mag on a closed bolt.  On most Pmags you can actually load an extra round, although I don't condone it.  Those feed lips will be just fine.
AR Sponsor