MPX mags? - Page 1

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2024's Favorite CCW? | PSA Micro Dagger

Posted: 8/27/2017 11:26:12 AM EDT

Just made a trade for a new MPX 8 inch pistol model and it came with 1 mag. Looks like PSA has some 20 rounders on sale for $20 but they are probably the gen 1 mags. Am I right that they should work ok in a gen 2 even though Sigs website says they will have feeding issues?

Posted: 8/27/2017 6:57:21 PM EDT

[#1]

They will have feeding issues

Posted: 8/27/2017 7:37:48 PM EDT

[#2]

Gonna have to pay for Gen 2s. Prepper Gun Shop tends to have sales on them.

Posted: 8/28/2017 9:59:29 AM EDT

[#3]

I've run gen 1 magazines (9 different ones) in my gen 2 gun without issue so far.

Posted: 8/28/2017 11:01:39 AM EDT

[#4]

Sig store had Gen 1 20rd mags on sale $8:99!!!!! For that price you can tinker with them if not reliable who cares.

Posted: 8/28/2017 3:32:00 PM EDT

[#5]

Quote History

Quoted:
Sig store had Gen 1 20rd mags on sale $8:99!!!!! For that price you can tinker with them if not reliable who cares.

View Quote

30 round Gen1 mags are also $19

Posted: 8/29/2017 7:52:30 PM EDT

[#6]

Quote History

Quoted:
I've run gen 1 magazines (9 different ones) in my gen 2 gun without issue so far.

View Quote

Same here. I didn't think that anyone had issues with gen 1 mags in gen 2 guns.

Posted: 8/29/2017 9:04:08 PM EDT

[#7]

I have several of both. cant tell the diff while shooting in my g2. gen1 mags work fine

Posted: 8/29/2017 11:32:20 PM EDT

[#8]

Gen 1 mags work in my Gen 2, as long as I load it to 27 or 28 rounds. Keep an eye out at Sig, Gunmagwarehouse.com, and Palmetto State. I have picked up Gen 2 for $19.99 each when they have specials.

Posted: 8/29/2017 11:58:20 PM EDT

[#9]

Quote History

Quoted:
Sig store had Gen 1 20rd mags on sale $8:99!!!!! For that price you can tinker with them if not reliable who cares.

View Quote

Anyone know if you can trim the base plate on the 20 rounders like you can on the 30 rounders???

Posted: 8/30/2017 2:22:00 PM EDT

[#10]

Quote History

Quoted:

Anyone know if you can trim the base plate on the 20 rounders like you can on the 30 rounders???

View Quote

I've done it. Hold like 24 I think, depending on how much you trim and force rounds

Posted: 9/5/2017 8:35:58 PM EDT

[#11]

All my mags except the ones it came with are gen 1 mags in a gen 2 gun. Never had an issue.

Posted: 9/5/2017 9:59:33 PM EDT

[#12]

Thanks everyone, seems to be a mix mostly leaning towards the positive results. I went ahead and ordered two Gen 1 mags that are on sale on the Sig website to try out. Finally got to shoot it some Sunday and I am super happy I got it in a trade. Now I just need to find a red dot sight for it.

Posted: 9/5/2017 10:51:16 PM EDT

[#13]

I only have 17 magazines with roughly half of them being Gen 1's, and they run as reliable as Gen 2 magazines. In other words I have had zero malfunctions with any MPX magazines regardless of generation. *

*I posted this response in other thread, and since it's applicable in this thread I thought I'd repost it.

Posted: 9/8/2017 5:12:21 AM EDT

[#14]

I have a gen 2 and a mixed assortment of mag gens and they all run fine. I have several more at the house from the sale Sig has going on but I have no idea what gen they are. I didn't even look since mine runs both equally well.

Posted: 9/8/2017 11:25:40 PM EDT

[#15]

I went ahead and ordered a few more of the gen1 mags. So far the gen1's I have used in my gen 2 have been fine. I got 5 20's and 3 30's for $120 to my door.

Posted: 9/9/2017 1:09:10 PM EDT

[#16]

Thanks for posting the deal to the Sig store. Just picked up ten 20 rounders and six 30 rounders for 203 delivered. Now I should have ten 20 & 30 rounders.

Posted: 9/9/2017 6:33:21 PM EDT

[#17]

Quote History

Quoted:
Thanks for posting the deal to the Sig store. Just picked up ten 20 rounders and six 30 rounders for 203 delivered. Now I should have ten 20 & 30 rounders.

View Quote

Hope you have better luck on shipping from Sig than I have so far. They shipped Fedex "Smartpost" and it will be 2 weeks from the time they shipped it to the time it finally delivers next week.

Posted: 9/9/2017 10:05:54 PM EDT

[#18]

Quote History

Quoted:
Sig store had Gen 1 20rd mags on sale $8:99!!!!! For that price you can tinker with them if not reliable who cares.

View Quote

(12) 20s for less then (6) 30s

I ordered (24) 20s

Who is making a good mag coupler for these?

Posted: 9/10/2017 2:34:34 AM EDT

[#19]

Quote History

Quoted:

Hope you have better luck on shipping from Sig than I have so far. They shipped Fedex "Smartpost" and it will be 2 weeks from the time they shipped it to the time it finally delivers next week.

View Quote

I'm sure it will take a while but I'm ok waiting. In no rush. I can't really complain about free shipping.

Posted: 9/10/2017 3:17:20 AM EDT

[#20]

I have both Gen1 and Gen2.

So far no issues with either but I've only shot a hundred or so rounds thru the Gen1 mags.
I've put approx. 900 to 1000 thru the three Gen2 I have.

Get both, keep the cheap Gen1 for plinking if they give you issues.

Gen2 for serious work, defense, matches etc.

Posted: 9/11/2017 9:59:17 AM EDT

[#21]

I own a Gen1 pistol I SBR'd and it works 100% with both generations of magazines. Buy a bunch of Gen 1's and you're set. A reliable $20 magazine is much better than a reliable $60 magazine.

Posted: 9/17/2017 12:56:05 AM EDT

[#22]

Quote History

Quoted:

Anyone know if you can trim the base plate on the 20 rounders like you can on the 30 rounders???

View Quote

Received my (24) 20 rounders today and 24 rounds works.
I can get a 25th round in but I can't charge the firearm from a closed bolt, the spring can only compact so much in a finite area.

Posted: 9/17/2017 3:31:25 AM EDT

[#23]

Quote History

Quoted:

Received my (24) 20 rounders today and 24 rounds works.
I can get a 25th round in but I can't charge the firearm from a closed bolt, the spring can only compact so much in a finite area.
https://s26.postimg.org/5x82zjxrd/fullsizeoutput_581.jpg

View Quote

Thanks for the picture and the update!!!!!

Posted: 9/17/2017 11:12:23 PM EDT

[#24]

Thanks for the info on the mag sale.

Ordered 6 Gen1 20 rnd mags and 6 Gen1 30 rnd.

Posted: 9/18/2017 11:54:55 AM EDT

[#25]

Thanks for the pic. I just ordered a few more gen 1 20's to mod.

Posted: 9/19/2017 11:03:51 AM EDT

[#26]

I use mainly Gen 2 mags and they run flawless.

That said, I do have three Gen 1 mags and they are hit or miss. Sometimes they run flawless. Other times I get a jam once or twice a mag. Though, they seem to get more reliable the more I use them. Didn't have any jams the last range trip.

I tend to stick with the Gen II.

Posted: 9/20/2017 10:29:02 PM EDT

[#27]

Just another data point. I went to the range tonight and used only gen1 mags including a 20 with the base plate cut to make it a 24. All mags ran without any issues at all in my gen2. Those who are on the fence I would suggest getting a few before they are gone.

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