Just bought a MPX Pistol to SBR - Page 1

[ARCHIVED THREAD] - Just bought a MPX Pistol to SBR

Posted: 5/5/2015 2:43:38 PM EDT

Really excited!

I’ve wanted a sub gun for years now and was really disappointed in the trigger pull on the MP5’s. The MPX looks to be a better/modern replacement.

Some questions

Where can I buy the SBR telescoping stock I see on the LE/SBR guns? It doesn’t appear that Sig has any of the accessories on their website.

I believe I read here that a Geissele S3G trigger pack works on it. Can anyone confirm?

Now the wait for PSA to ship.

Thanks in advance!!!

Posted: 5/5/2015 8:42:17 PM EDT

[#1]

This link should have all the info you are looking for.

Posted: 5/5/2015 10:09:04 PM EDT

[#2]

I'll confirm Saturday on the s3g. Dry fire tests are promising. Please wait lol.

Also customer service said it might not work as some 9mm ar's have ramped bolts.

Posted: 5/6/2015 1:30:43 AM EDT

[#3]

im also wanting the telescoping stock so hopefully it comes out this summer. As far as just mounting an AR extension in order to use ar stocks, whats the best way to do that?

Posted: 5/6/2015 6:51:42 AM EDT

[#4]

Quote History

Quoted:
im also wanting the telescoping stock so hopefully it comes out this summer. As far as just mounting an AR extension in order to use ar stocks, whats the best way to do that?

View Quote

The MPX with Brace comes with an AR extension compatible tube. Just swap the pistol extension for an AR one and you're good to go.

Posted: 5/6/2015 11:21:49 AM EDT

[#5]

Has the ATF added the MPX to the list of manufactures/models when registering them as a SBR on Eforms?

Posted: 5/6/2015 12:47:12 PM EDT

[#6]

Quote History

Quoted:
Has the ATF added the MPX to the list of manufactures/models when registering them as a SBR on Eforms?

View Quote

Models get added when someone filing out the form enters that model. It's in there.

Posted: 5/7/2015 2:42:37 PM EDT

[#7]

Quote History

Quoted:
Has the ATF added the MPX to the list of manufactures/models when registering them as a SBR on Eforms?

View Quote

Was in there when I submitted mine

Posted: 5/7/2015 3:43:18 PM EDT

[#8]

10/4 thanks guy’s. Hopefully it will be here tomorrow.

Posted: 5/7/2015 4:07:46 PM EDT

[#9]

Also, they have the MPX accessories if you call their number (see the magazine thread like 1 or 2 posts down). They are all actually 20% off right now (apparently MSRP on the telescopic stock was $249). I just bought mine, but he said it will probably be end of the month/next month before they get delivered.

Posted: 5/7/2015 4:11:24 PM EDT

[#10]

Quote History

Quoted:
Also, they have the MPX accessories if you call their number (see the magazine thread like 1 or 2 posts down). They are all actually 20% off right now (apparently MSRP on the telescopic stock was $249). I just bought mine, but he said it will probably be end of the month/next month before they get delivered.

View Quote

Do you mean the a3 style ar stock? Or the mp5 telescoping stock?

Posted: 5/7/2015 6:20:57 PM EDT

[#11]

Quote History

Quoted:
Also, they have the MPX accessories if you call their number (see the magazine thread like 1 or 2 posts down). They are all actually 20% off right now (apparently MSRP on the telescopic stock was $249). I just bought mine, but he said it will probably be end of the month/next month before they get delivered.

View Quote

Awesome! Thanks for the info.

Posted: 5/8/2015 10:36:25 AM EDT

[#12]

Quote History

Quoted:

Do you mean the a3 style ar stock? Or the mp5 telescoping stock?

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

Quoted:
Also, they have the MPX accessories if you call their number (see the magazine thread like 1 or 2 posts down). They are all actually 20% off right now (apparently MSRP on the telescopic stock was $249). I just bought mine, but he said it will probably be end of the month/next month before they get delivered.

Do you mean the a3 style ar stock? Or the mp5 telescoping stock?

Mp5 like telescoping stock.

Posted: 5/9/2015 11:23:07 PM EDT

[#13]

Are these made in the USA? Just wondering if 922r would apply.

Posted: 5/10/2015 6:04:39 AM EDT

[#14]

Quote History

Quoted:
Are these made in the USA? Just wondering if 922r would apply.

View Quote

Yes they are built entirely in the US.

Posted Via AR15.Com Mobile

Posted: 5/11/2015 8:04:10 PM EDT

[#15]

So I picked my Sig MPX up today. This thing is awesome! Just finished with the Eform Form 1.

So what’s the story on the geissele S3G trigger? Does it work in the MPX?

Posted: 5/11/2015 9:14:37 PM EDT

[#16]

Quote History

Quoted:
So I picked my Sig MPX up today. This thing is awesome! Just finished with the Eform Form 1.

So what’s the story on the geissele S3G trigger? Does it work in the MPX?

View Quote

#the weather here was absolute garbage and I did not take it to the range this past weekend.... It passes the dry fire tests..

Posted: 5/11/2015 11:06:33 PM EDT

[#17]

Quote History

Quoted:

#the weather here was absolute garbage and I did not take it to the range this past weekend.... It passes the dry fire tests..

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

Quoted:
So I picked my Sig MPX up today. This thing is awesome! Just finished with the Eform Form 1.

So what’s the story on the geissele S3G trigger? Does it work in the MPX?

#the weather here was absolute garbage and I did not take it to the range this past weekend.... It passes the dry fire tests..

Roger that.

Posted: 5/12/2015 2:07:07 PM EDT

[#18]

Which barrel did it come with, the 6.5"?

Posted: 5/12/2015 3:39:54 PM EDT

[#19]

8" barrel for the p or the psb.

Posted: 5/12/2015 3:59:58 PM EDT

[#20]

8 inch on my factory pistol. I ordered the tele stock and 3 pack of mags directly from Sig today. Rep said they should ship out around the end of June.

You get the 20% code when you register ownership with Sig on their website.