30 rnd pmags

mward69 · Jun 7, 2023

Heya folks. Newbie here.
I have 4 gen 4(?) P mags. Bought my sport 2 used. But when I load a full mag, I literally have to ***** slap/ram it in hard or it won't seat.
It was suggested I only load 28 which does help, just wondering if it's a new mag thing or something. I have some gen 3s coming, hopefully they're a little better
Thx in advance

Mike SC Hunter · Jun 7, 2023

Hate to describe your PM's as junk but that applies to ALL pro mags. They are low quality junk that knowledgeable gunners won't use. Trash them and get some quality mags and your problems will go away and you'll be happy again.

NewLiberty · Jun 7, 2023

Magpul PMags are pretty high quality.

That is a common problem with 30 round mags of all kinds with ARs, I expect you will probably see the same thing with the Gen 3s. I first started using PMAGS when I bought Gen 1's prior to going to Iraq in 2008, and have used them consistently for the past 15 years. Getting a 30 round metal mag filled with 30 rounds to seat can also be difficult. with a closed bolt.

TJm15.38 · Jun 7, 2023

I've quit using 30-round mags and starting shooting the old Colt 20-round straight mags like they used in Vietnam. Since I do a lot of shooting off the bench, 20-round mags are easier when I'm using a rifle rest; also easier to load. I like the MagPul 10-round mags too.

Edit: It's not to say that I don't have any 30-round mags. About two years ago I found a deal on Colt 30-round military surplus mags and myself and a friend who owns a pawn/gun shop and I went together and split a purchase of twelve of the Colt military mags. When we recieved them, they looked unissued and brand new.

rincar · Jun 7, 2023

Just tape 2 twenty round Magazines together like we did in Viet nam

Ranger17 · Jun 7, 2023

I don’t have a ton of rounds thru my Sport 2 and some were using 10 round mags but I don’t recall having any issues with a full 30-ct mag. That said I load in the bolt back position which may or may not help load the full mag.
OP, are you loading the full mag with bolt back or is it in battery? I can say I had issues with a Shield that for me (bad hands) needed the slide open to accept the full mag. So perhaps the bolt plays a part on your concern. Just a thought.

Fishinfool · Jun 7, 2023

When you load those full 30 round mags into the gun with the bolt closed, you are pressing the first round in the magazine down, fighting the mag spring to seat the mag. It seats easier with less rounds because there is less pressure on the mag spring.

Load mags into your gun with an open bolt. The issue should go away.

"Magpul" brand "P" Mags are quality mags. "Pro Mag" magazines are not. Sometimes people get them mixed up as the names are similar.

Larry

TX-Dennis · Jun 7, 2023

Fishinfool said:
When you load those full 30 round mags into the gun with the bolt closed, you are pressing the first round in the magazine down, fighting the mag spring to seat the mag. It seats easier with less rounds because there is less pressure on the mag spring.

Load mags into your gun with an open bolt. The issue should go away.

"Magul" brand "P" Mags are quality mags. "Pro Mag" magazines are not. Sometimes people get them mixed up as the names are similar.

Larry

Exactly so. P Mags are favored by many soldiers over the metal mags. I like them as well - much easier on the fingers when loading and 100% reliable.

Racer X · Jun 8, 2023

Mike said:
Hate to describe your PM's as junk but that applies to ALL pro mags. They are low quality junk that knowledgeable gunners won't use. Trash them and get some quality mags and your problems will go away and you'll be happy again.

PMags are MagPul PMags. Nothing to do with ProMags. PMags were the first polymer magazine authorized for use by the military. Arguably the best currently available.

shell627 · Jun 8, 2023

Mike said:
Hate to describe your PM's as junk but that applies to ALL pro mags. They are low quality junk that knowledgeable gunners won't use. Trash them and get some quality mags and your problems will go away and you'll be happy again.

Pmags are totally different from promags.pmags are quality when my son was in Iraq he had to watch out for special forces guys who tried to take the Pmags I gave him away.People who don’t use ar15 s for combat or fighting should not tell people what works or doesn’t.

mward69 · Jun 8, 2023

Fixed it. That was easy.
Thx for the tip

mward69 · Jun 8, 2023

Easy fix, thx for the tip

Buckshot Barry · Jul 9, 2023

I don’t know if this was covered, but my Magpul PMAGs gen 2 & 3 will load 31 rounds. Tight as can be seating when that full.

When you look at your PMAG from the rear, the top round should be on the right for a 30 round total. My Sport Ii seats 30 rounds just fine with the bolt closed. It is a 2019 model.

N4KVE · Aug 3, 2023

I had that problem with the Gen 3 mags, but the GEN 2 mags never had that problem. Got rid of the Gen 3 mags, & only buy Gen 2’s for $10 each. Problem solved. GARY

dsf · Aug 4, 2023

I presume others have found out too, but often the poly mags don't fit some of the other "takes AR magazines" lesser known rifles. I've got a couple of them - Robinson M-96 & XCR, CETME L and Volquartsen for example.

rwsmith · Aug 4, 2023

I wonder why....

Fishinfool said:
When you load those full 30 round mags into the gun with the bolt closed, you are pressing the first round in the magazine down, fighting the mag spring to seat the mag. It seats easier with less rounds because there is less pressure on the mag spring.

Load mags into your gun with an open bolt. The issue should go away.

"Magpul" brand "P" Mags are quality mags. "Pro Mag" magazines are not. Sometimes people get them mixed up as the names are similar.

Larry

I wonder why a company that makes a poor product would make their logo look like a company's that makes good products?

Racer X · Aug 4, 2023

just a FYI, you can currently buy gen 2 and gen 3 P Mags, and a variant designed to run well in NATO rifles based on using the same mags called an E Mag "While EMAG remains 100% compatible with the AR15/M16 platform, its unique geometry is optimized for foreign-made weapons such as the HK 416, FN SCAR, British SA-80, Beretta ARX-160, IMI Tavor, and others." Gen 2 and Gen 3 can have a clear window for round counting.

I have some Glock pattern P Mags for 9 and 40 pistols too.

bamashooter · Aug 4, 2023

Mike said:
Hate to describe your PM's as junk but that applies to ALL pro mags. They are low quality junk that knowledgeable gunners won't use. Trash them and get some quality mags and your problems will go away and you'll be happy again.

PMAGs are generally exceptional magazines and are certainly not a "Promag". Have several 20/30 rounders of all generations and nary a problem.

SRT · Aug 4, 2023

Racer X said:
PMags are MagPul PMags. Nothing to do with ProMags. PMags were the first polymer magazine authorized for use by the military. Arguably the best currently available.

MagPul PMags are pretty much the industry standard.

cyphertext · Aug 5, 2023

I've never had this issue with Magpul Pmags in my Sport, or any other AR. The Pmag is made so that when you have 30 rounds in it, there is still a little room and a little give so that you can get the dust cover on the magazine. The dust cover pushes that top bullet down into the magazine to snap on. When you insert the magazine on a closed bolt, it should have enough give to let the magazine seat.

But, even with Pmags, I tend to ram that magazine in there and give it a good slap to ensure it is seated. Wasn't trained to baby the weapon.

30 rnd pmags

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