Upper for a 9mm SBR Build?

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[ARCHIVED THREAD] - Upper for a 9mm SBR Build?

Posted: 4/11/2017 8:40:30 PM EDT

I'm in the process of building a 9mm SBR on a PSA Glock lower but had some questions on what upper I should go with. I was looking at a 5-5.5 inch barrel length because I wanted to attach an Octane to suppress it, but didn't want it to be a dedicated host for it either. What is everyone's experience with which upper/length they prefer? I'm open to all suggestions.

Posted: 4/11/2017 9:12:03 PM EDT

[#1]

That length works for me

Attached File

Posted: 4/11/2017 10:16:51 PM EDT

[#2]

I'm happy with my 8" barrel to get the best trade-off of velocity vs. length, and with an LWRC UC stock it's still fairly compact. Even with a suppressor it's a nice sized package overall.

Posted: 4/12/2017 9:04:14 AM EDT

[#3]

Seanquigley- Where is your upper from?

Posted: 4/12/2017 11:32:11 AM EDT

[#4]

My upper startied out as a 10.5" PSA upper.
I sent it to Rudi (Mad Machinist) he cut the barrel down, I cut the handguard down to fit the shortened barrel.

Posted: 4/12/2017 12:16:40 PM EDT

[#5]

I would keep it in the 4.5 to 5.5 inch range. I would build your own upper so you can get exactly what you want.

Posted: 4/19/2017 6:44:09 PM EDT

[#6]

I like my 5.5". I would say build your own, you get exactly what you want. Mine is a VLTOR upper with a QC10 barrel and SLR rail.

Posted: 4/19/2017 9:32:29 PM EDT

[#7]

Ditto on build your own.
Spinta upper and bcg
Ballistic advantage 5.5"
Seekins mlok 10" rail
Hybrid with 3 lug mount
Psa colt 9mm lower

Posted: 4/20/2017 8:29:50 PM EDT

[#8]

Still waiting on my stamp. I built mine to get what I wanted(side charger) and went with a 4" barrel. If I'm going short, I'm going short.

Posted: 4/29/2017 1:11:41 AM EDT

[#9]

I built my own upper with an 8" NFA barrel, a stripped upper I had in the parts bin and a cheap rail I cut down. The lower is an 80% NFA that takes glock mags. It will have a form 1 suppressor on it in the near future.

Posted: 4/29/2017 8:23:27 AM EDT

[#10]

I couldn't decide, so I got a 3.5" rear charging upper and a 7.5" side charging upper.

3.5"

7.5"

Posted: 4/29/2017 5:24:14 PM EDT

[#11]

TROS 5" 3-Lug with a slick side upper like the CMT UPUR-4 is pretty cool. The build shown below is with a Quintin Defense upper. ..but CMT is similar, less expensive, and lighter:

Posted: 4/29/2017 9:24:53 PM EDT

[#12]

Quote History

Quoted:
I couldn't decide, so I got a 3.5" rear charging upper and a 7.5" side charging upper.

3.5"
http://i19.photobucket.com/albums/b189/jimmyheadgear/DSC_6794%20Large_zpszjfpmc1s.jpg

7.5"
https://s5.postimg.org/4b154k0af/copyDSC_6849_(Large).jpg

View Quote

Who's the manufacturer upper on that sidecharge and did it come that color?

Posted: 4/29/2017 9:53:36 PM EDT

[#13]

Quote History

Quoted:

Who's the manufacturer upper on that sidecharge and did it come that color?

View Quote

It's a MAS Defense upper. I had my local guy cerakote it Tungsten Grey.

Posted: 4/29/2017 10:01:19 PM EDT

[#14]

Quote History

Quoted:

It's a MAS Defense upper. I had my local guy cerakote it Tungsten Grey.

View Quote

Pretty sure Matrix Aero/Matrix Arms makes those uppers ( they make Rugers AR stuff)

Matrix Arms

Posted: 4/29/2017 10:06:39 PM EDT

[#15]

Quote History

Quoted:

Pretty sure Matrix Aero/Matrix Arms makes those uppers ( they make Rugers AR stuff)

Matrix Arms

View Quote

You're probably right, but it doesn't say so on the site.

http://shop.masdefense.com/MAS-DEFENSE-AR9-9MM-SIDE-CHARGING-HANDLE-BILLET-UPPER-RECEIVER-SCUPR9-NRM.htm

Posted: 4/29/2017 11:09:22 PM EDT

[#16]

Yea I had a matrix side charge for my 9mm Glock AR I sold a lil while ago. But never saw that color.

I'm just starting to build another Glock style 9mm ar but this time a little better than last. But def going side charge. Loved that.

Gonna do compact as hell this time (prev was 4.5" barrel) along with a pdw stock.

Posted: 4/30/2017 6:40:43 PM EDT

[#17]

I took this right after completing the build. It has a red dot on it now:

DDLES lower, LWRC UCIW stock, heavybuffers.com buffer, Quarter Circle 10 bolt, TROS 5" 3 lug barrel, RRA 9mm upper, OdinWorks handguard, Octane 9 with Griffin 3 lug adapter.
Definitely build it yourself.

Posted: 5/12/2017 12:50:06 PM EDT

[#18]

I'm kicking it old school and went with this:

It will be cut to 9-3/4" or so and used with a set of fixed sights.

I want it to be more carbine-like than PDW.

Posted: 5/15/2017 7:46:08 PM EDT

[#19]

Quote History

Quoted:
I couldn't decide, so I got a 3.5" rear charging upper and a 7.5" side charging upper.

3.5"
http://i19.photobucket.com/albums/b189/jimmyheadgear/DSC_6794%20Large_zpszjfpmc1s.jpg

7.5"
https://s5.postimg.org/4b154k0af/copyDSC_6849_(Large).jpg

https://s5.postimg.org/49r7b4ygn/copyDSC_6838_(Large).jpg

View Quote

I like your style!

Mine has a 5" barrel, QC10/Vltor upper. I'm about to make a 6" can that reflexes 3" over the barrel, so the end result will be almost identical. I Cerakoted mine Tungsten as well.

Attached File

Posted: 5/27/2017 10:00:56 PM EDT

[#20]

I love my 5.5in from Macon Armory. Runs great both suppressed and unsuppressed.

Attached File

[ARCHIVED THREAD] - Upper for a 9mm SBR Build?

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