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4/22/2017 12:33:49 AM EDT


I may have made an awesome or terrible purchase. After being on the waiting list for a while, the M5 came back in stock.

So here I am, with a brand new M5!

Now I need a barrel. I've been searching on here, searching the web, reading FAQs and it seems like everyone has had problems with everything. I'd like to do a M110K clone, so I'm looking for a pretty good quality barrel. I've looked at rainier arms ultramatch - (lots of problems??) And Ballistic Advantage as leaders. Going to use KAC URX 3.1 once I find one in stock.

Anyone have any insight on good barrel and BCG combos for Aero?
4/22/2017 12:45:19 AM EDT
[#1]
I used a 16" Faxon mid length med taper for mine (pretty light. My 15" M5e1 with RDS and buis comes in at less than 9lbs). I also used a Tom's Tactical nitride bcg ($150). FOrward assist works great with that combo too. To (preemptively) avoid any extraction issues, installed a DPMS GII extractor kit (uses reshaped extractor and elastomer bushing instead of spring).
IMHO, M5 (especially the e1) is the best quality/value 308 set out there.
You did good!

ETA: oh, and don't screw around, get the AP lower build kit. Comes with the proper length takedown pins and longer mag release button.
4/22/2017 2:39:12 AM EDT
[#2]
Noveske 16" chf with a lmt enhanced bolt in standard fa carrier
4/22/2017 2:50:50 AM EDT
[#3]
I vote awesome
4/22/2017 5:30:53 AM EDT
[#4]
If you want to avoid problems go with a proven company, there is no free lunch when it comes to this. It cracks me up how a lot of guys are buying $200ish barrels and expect AMU type performance. If you are wanting a ready made barrel with proven performance then get a Krieger, Criterion, JP or Lother Walther. These companies have ready made AR-10 barrels and you can get bolts from some of them. There are a couple of threads in the precision section where some are having problems with some new company barrels and are getting ignored. The buy once, cry once advice seems to not be followed in this section when it comes to barrels...
4/22/2017 11:33:04 AM EDT
[#5]
I went with the faxon fluted 20" and a toolcraft  nib bcg on my M5 build. Been very pleased.
4/22/2017 9:43:00 PM EDT
[#6]
Quote History
Quoted:
If you want to avoid problems go with a proven company, there is no free lunch when it comes to this. It cracks me up how a lot of guys are buying $200ish barrels and expect AMU type performance. If you are wanting a ready made barrel with proven performance then get a Krieger, Criterion, JP or Lother Walther. These companies have ready made AR-10 barrels and you can get bolts from some of them. There are a couple of threads in the precision section where some are having problems with some new company barrels and are getting ignored. The buy once, cry once advice seems to not be followed in this section when it comes to barrels...
View Quote
That is the plan, I'm not going cheap.

Poster above mentioned Noveske, but it looks like they arent making 308 barrels anymore? None on their website...

308 BCG from LMT looks awesome, will probably use that. Still need a rifle gas 16" barrel

Do I need an adjustable gas block?
4/23/2017 8:08:14 PM EDT
[#7]
Bartlein stainless 5R barrel or Lothar Walther
4/24/2017 12:37:43 AM EDT
[#8]
since you bought a aero upper and lower its best to use their bcg.

308's do not have a standard spec.
4/25/2017 2:41:07 AM EDT
[#9]
Quote History
Quoted:
Bartlein stainless 5R barrel or Lothar Walther
View Quote
Bead blasted stainless is about as far as I'll go, its in theory going to be a M110K clone
4/25/2017 2:41:46 AM EDT
[#10]
Quote History
Quoted:
since you bought a aero upper and lower its best to use their bcg.

308's do not have a standard spec.
View Quote
Isnt it more important to match a high quality and or matched bolt to a barrel? The OD of the tail end of a BCG seems relatively uniform?
4/26/2017 12:53:13 AM EDT
[#11]
I'd go with ballistic advantage (owned by aero) and look at their bcg or one from  failzero. Bunch of sales going on right now for both
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