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MD, USA
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Posted: 4/14/2024 11:19:24 AM EDT
Im currently putting together a SBR .308 off a Aero M5 lower. I'm looking for a complete upper barreled 12/13 inches. Does anyone know any good sites stocking any? |
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Posted: 4/14/2024 11:35:11 AM EDT
[Last Edit: Daggertt]
[#1]
Google gives me a couple options for complete aero uppers.
https://vtsupply-com.3dcartstores.com/Aero-M5-125-Barreled-308-Upper-Receiver-with-Atlas-ONE-Rail-M-LOK-Handguard_p_5056.html https://moriartiarmaments.com/ar-10-.308-12.5-aero-precision-style-upper-receiver-assembly-aero12.5ar10ur Never ordered from either site. Not sure what other options are compatible. I'd build one myself with a stripped m5 upper if I was looking to use an m5 lower. Actually, what i did was buy a (no longer available) 12.5" POF ROGUE pistol and sbr it.  Attached File Attached FileSince POF doesn't sell a 12.5 gun anymore, if i was looking to do it now, if probably buy a 16" ruger sfar and have the barrel cut down to 12.5" (and obviously change the handguard, but they take ar15 handguards so take your pick). |
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Posted: 4/14/2024 11:42:42 AM EDT
[Last Edit: RDTCU]
[#2]
Quote HistoryOriginally Posted By Daggertt: Google gives me a couple options for complete aero uppers. https://vtsupply-com.3dcartstores.com/Aero-M5-125-Barreled-308-Upper-Receiver-with-Atlas-ONE-Rail-M-LOK-Handguard_p_5056.html https://moriartiarmaments.com/ar-10-.308-12.5-aero-precision-style-upper-receiver-assembly-aero12.5ar10ur Never ordered from either site. Not sure what other options are compatible. I'd build one myself with a stripped m5 upper if I was looking to use an m5 lower. Actually, what i did was buy a (no longer available) 12.5" POF ROGUE pistol and sbr it. https://www.ar15.com/media/mediaFiles/435611/Screenshot_20240414-124236_Gallery_jpg-3187681.JPG https://www.ar15.com/media/mediaFiles/435611/20220718_202737_jpg-3187680.JPG Since POF doesn't sell a 12.5 gun anymore, if i was looking to do it now, if probably buy a 16" ruger sfar and have the barrel cut down to 12.5" (and obviously change the handguard, but they take ar15 handguards so take your pick). There are still some newer 12.5's in stock but they shipped as a carbine, pinned with a fake can. Now they sell a pinned and welded 13.75 model |
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MD, USA
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Posted: 4/14/2024 12:50:36 PM EDT
[#3]
You all made some good points. Buying a complete upper is just way overpriced when Im going to turn around and upgrade it immediate.. Found this M5 complete upper on sale that im just going to buy now so finding the right barrel will be all i need.
https://www.opticsplanet.com/aero-apar308503a-308-upper-blk.html?_iv_code=29D-UPR-APM5AUR-APAR308503AC |
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MD, USA
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Posted: 4/14/2024 1:12:26 PM EDT
[#5]
can these barrels and uppers all shot 7.62x51 or only .308?
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Posted: 4/14/2024 1:16:29 PM EDT
[#6]
They will be fine in an ar10 shooting either 7.62 or 308
https://www.ar15.com/forums/ar-15/308_and_7_62x51/16-567875/ |
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MD, USA
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Posted: 4/14/2024 1:21:53 PM EDT
[#7]
Ok perfect, thank you
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MD, USA
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Posted: 4/14/2024 2:03:47 PM EDT
[#8]
So I think this set up will work... https://www.gorillamachining.com/HITMAN-INDUSTRIES-AR-10--125-308-WINCHESTER-Barrel--4150-CMV-s--110-Twist--Carbine-Gas-System_p_596.html https://www.joeboboutfitters.com/Kaw-Valley-Precision-Barrel-Extender-5-8x24-p/kvp-be-5824.htm https://www.aeroprecisionusa.com/m5-atlas-s-one-m-lok-handguard |
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Posted: 4/14/2024 3:23:59 PM EDT
[#9]
Quote HistoryOriginally Posted By moe3161: So I think this set up will work... https://www.gorillamachining.com/HITMAN-INDUSTRIES-AR-10--125-308-WINCHESTER-Barrel--4150-CMV-s--110-Twist--Carbine-Gas-System_p_596.html https://www.joeboboutfitters.com/Kaw-Valley-Precision-Barrel-Extender-5-8x24-p/kvp-be-5824.htm https://www.aeroprecisionusa.com/m5-atlas-s-one-m-lok-handguard That can't be good for a suppressor if that was in the plan, but either way, if you want a longer barrel, then don't buy a 12.5" barrel. If you can't find the barrel length you want, then buy something longer and get it chopped and threaded. |
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MD, USA
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Posted: 4/14/2024 5:46:37 PM EDT
[#10]
barrel is shorter than handguard... hand guard width smaller than suppressor..
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Posted: 4/14/2024 6:31:27 PM EDT
[#11]
Then you need to buy proper parts that fit correctly not use a barrel extender. You are building from scratch why not use the right parts?
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MD, USA
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Posted: 4/14/2024 6:44:21 PM EDT
[Last Edit: moe3161]
[#12]
ok cool
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Posted: 4/15/2024 12:24:20 AM EDT
[Last Edit: Daggertt]
[#13]
Buy a different handguard. Or modify the handguard.
There are many handguards compatible with the aero m5 upper. But adding a barrel extender is just going to be a headache for a suppressor likely resulting in baffle strikes. If you get a non-enhanced m5 upper (like the one you linked on opticsplanet), it's compatible with any sr25/ dpms handguard.(dpms high) Slr makes a bunch of options. But there are other brands as well. Here's my 14" m5 pistol with a no longer available Daniel defense 762 handguard.  Attached File |
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MD, USA
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Posted: 4/15/2024 1:47:29 AM EDT
[Last Edit: moe3161]
[#14]
ok I will just look for a 12inch hand guard then...
So actually this one will solve the problem unless i can find something else identical and similar in weight since the weight is also a big factor for me with this. https://www.opticsplanet.com/aero-precision-m5-atlas-s-one-m-lok-handguard.html?_iv_handguard-length=12-in&_iv_code=29D-HZ-M5AS1ML-APRA538104A |
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Posted: 4/15/2024 3:47:56 AM EDT
[#16]
Quote HistoryOriginally Posted By moe3161: ok I will just look for a 12inch hand guard then... So actually this one will solve the problem unless i can find something else identical and similar in weight since the weight is also a big factor for me with this. https://www.opticsplanet.com/aero-precision-m5-atlas-s-one-m-lok-handguard.html?_iv_handguard-length=12-in&;_iv_code=29D-HZ-M5AS1ML-APRA538104A It says "12 in" but it's the same length as their other handguard.  SLR makes a handguard that will work  As does CMT  Wilson Combat also has one  |
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Posted: 4/15/2024 4:49:04 AM EDT
[#17]
If weight is a big deal for you on this setup, I would again recommend to actually buy a 16" midlength SFAR, pull the barrel, and have it cut it down to 12.5" or 13" (after submitting your Form 1). You'd likely be saving pounds over an M5 build, and likely $$$ as well, and you could throw something like an Aimsports lightweight Mlok rail on it for $90 (or literally any other AR15 handguard).
It looks like you're planning to spend at least $1000 on this build. You could get an entire 16" SFAR + new handguard for that, plus another $75 for barrel work and end up with a sweet 308 12.5" sbr that weighs about the same as a 12.5" AR15. If you've already bought some of the parts, it's likely too late to adjust course. But just make sure what you end up buying won't create more issues with you down the road trying to suppress it, etc. If you're sold on that $100 hitman industries 12.5" barrel (never heard of them and the price doesn't inspire confidence, but...) the hitman website has what appears to be a similar barrel for $65. |
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MD, USA
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Posted: 4/15/2024 5:14:53 AM EDT
[Last Edit: moe3161]
[#18]
Yea I literally just ordered that the 12.5 barrel couple mins ago so going forward with the plan.
I'm not really worried about the money as I long as I get what I want conveniently. I already have the lower Form 1 approved so that's good to go. damn so that hand guard is really the exact same size. *** Actually now that I think of it I have a plumber/mechanic neighbor who i can just git it to to trim it down to the perfect length. Think all i would need now is a decent adjustable gas block option The other barrel isnt threaded which means more work I don't care for. Im confused.. I thought its said that that you cant use an AR15 handguard on a AR10?? |
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Posted: 4/15/2024 5:50:37 AM EDT
[#19]
Quote HistoryOriginally Posted By moe3161: . Im confused.. I thought its said that that you cant use an AR15 handguard on a AR10?? They are completely different designs than the traditional 308 ar guns. Truly an ar15 chambered in 308. It's why I'm saying that option would be pounds lighter than the m5. And i didn't notice the lack of muzzle threads on that other barrel. No wonder they are basically giving it away! |
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MD, USA
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Posted: 4/15/2024 5:56:01 AM EDT
[#20]
I see what your saying now..
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Posted: 4/15/2024 9:29:16 AM EDT
[Last Edit: WUPHF]
[#21]
Quote HistoryOriginally Posted By moe3161: ok I will just look for a 12inch hand guard then... So actually this one will solve the problem unless i can find something else identical and similar in weight since the weight is also a big factor for me with this. https://www.opticsplanet.com/aero-precision-m5-atlas-s-one-m-lok-handguard.html?_iv_handguard-length=12-in&_iv_code=29D-HZ-M5AS1ML-APRA538104A The weight listed on that handguard isn’t accurate, Optics Planet fails to list the roughly 5 oz. for the barrel nut and mounting screws. |
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Posted: 4/15/2024 9:41:30 AM EDT
[Last Edit: WUPHF]
[#22]
Quote HistoryOriginally Posted By moe3161: Yea I literally just ordered that the 12.5 barrel couple mins ago so going forward with the plan. I'm not really worried about the money as I long as I get what I want conveniently. I already have the lower Form 1 approved so that's good to go. damn so that hand guard is really the exact same size. *** Actually now that I think of it I have a plumber/mechanic neighbor who i can just git it to to trim it down to the perfect length. Think all i would need now is a decent adjustable gas block option The other barrel isnt threaded which means more work I don't care for. Im confused.. I thought its said that that you cant use an AR15 handguard on a AR10?? I’ve cut down/chopped more than a few handguards. That is not a handguard that’s viable for chopping. It has offset cooling vents and MLOK slots, meaning no matter where you chop it, it’s going to have some slot that’s now open at the front of your handguard. That will lead to parts of the handguard being unsupported, significantly weakening it and likely resulting in bending/collapsing (eventually). See how the red lines intersect either an MLOK slot or cooling vent?  Attached FileYou need to find a 10”-11.5” handguard. The PITA of it is there’s nowhere near the variety available in large frame handguards, so your options are limited. 12.5” barrels are even less common, so your choices are going to be even more limited. Half-assing the handguard on an otherwise nice build with an SBR’d lower and a suppressor just seems like a stupid, short sighted decision, though. That CMT handguard listed above is only $40 more expensive than the Aero. If you can’t deal with the few extra oz there, the SLR is a bit more expensive but should be lighter than the Aero. Either way, just do it right from the start. JMHO. |
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MD, USA
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Posted: 4/15/2024 3:54:30 PM EDT
[#23]
Thank you but im going to stick to what I said.
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Posted: 4/15/2024 4:11:28 PM EDT
[Last Edit: WUPHF]
[#24]
Quote HistoryOriginally Posted By moe3161: Thank you but im going to stick to what I said.  If half-assing a rifle build is your jam, rock on brother. |
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MD, USA
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Posted: 4/15/2024 5:08:04 PM EDT
[#25]
Thank you... take care
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