Not affiliated, find their upper and lower to be quite well thought out… the milled out set looks suitable for a lightweight build. (6.5 oz stripped lower / 5.85 oz stripped upper)
They also have standard sets…
Thoughts?
http://www.2a-arms.com/products
No matter how good it looks or how light it is, $530 is too much to pay for a stripped receiver set
I have to agree $530 for an upper and lower, no matter how special seems like a lot to pay.
That’s basically an extra 40 minutes of mill time for about 2oz in chips taken off. I’m sure there’s a market for it, but that’s a small one. It’s pretty work, but the net performance (weight) gain for the time isn’t a great tradeoff, so these are a better fit on no-expense-spared builds, otherwise there are much more cost efficient ways to trim mass.
Something is worth what someone will pay for it. That’s all.
The set is about $480 from the only dealer that handles them for 2AA. If you’re trying for a real lightweight and want to save 4 ounces without using polymer or cast magnesium alloy, this set makes sense. It is billet and it saves 1/4 pound. When trying to go lighteight, you look to save every ounce, in EVERY part possible. I have three sets of Aero Precision receivers to build with, but I chose 2AA for my lightweight build. It will always be lighter than any rifle I can build with my APs.
This set will not be for everyone, but if you want to build a true lightweight AND have billet receivers, the 2AA is an awesome option. I just received my set and the fit and finish are outstanding. I am going cheap with my pistol build, but my ligtweight, not so much.
So, are they worth it? Well, that’s an individual choice that no one gets to make for you.
http://www.hawktecharms.com/SearchResults.asp?mfg=2A+Armament
It is kind of cool if you are into the whole “must cut weight” game. Price is not that bad. I have seen Noveske FFLs with a upper go for more than that. Billet set run in that area also. So it is competitive.
Would I get one…no way. I will stick with my $130 Aero Precision set any day…:haha:
http://aeroprecisionusa.com/combo-sets/ar15-stripped-receiver-set.html
Interesting. I would use those over plastic or magnesium receivers, neither of which I trust. These are probably stronger than those, but it is probably safe to say they wouldn’t be as strong as non-lightened billet or forged. Probably a good option depending on the purpose of the rifle.
V7 weapon systems is not done yet, I’ll wait to see what comes out.
They were $115 when I bought two months ago, but you can still get a first run AP set for $120 with free shipping from DOA.
http://www.shop.doasales.net/AERO-PRECISION-STRIPPED-LOWER-UPPER-SET-AERO-RECEIVER-SET.htm
I agree they look great, $480 for a set is getting up there.
I don’t understand why nobody has done what BCM did with the KMR. Word has it, BCM tried manufacturing the KMR out of magnesium only and during testing, it just wasn’t strong enough. They figured out that by doing a 92/8 Magnesium/Aluminum mix, it made the Magnesium alloy something like 80% stronger.
Regarding the Upper/Lower combo, I don’t know that I’d pay that much for it but it does look like some nice work. I like the built in QD socket.
Why add a QD slot if you’re trying to make the lightest possible lower?
The lightweight lower doesn’t have QD…
Oh OK…I see now.
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Why the KNS-like trigger pin retainer look?
Why not? I’ve always said there are 5 groups of people they effect.
They effect the guys who just want to use mil-spec and the last time I checked, KNS pins do not hold a mill spec.
The next guy who will never use them is because he has heard from others throughout the industry forums that they are not needed at all or only if you’re going to run full auto.
These guys will use them because they look cool. They don’t really understand how they work or when they’re needed most.
These guys use them because they’ve had at least 2 pins start to walk. After checking to make sure everything was installed correctly. After conforming they feel that the next option would be KNS pins.
People who purchased 80%ers that came either anodized or coating with a color. After completing the 80%er, they figure their FCG holes are less likely to egg out if the don’t have pins constantly rubbing against the bare aluminum.
Just use whatever you think gives you the best set up. Its your rifle and you can make the decision through research.
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What’s this got to do with these lowers being milled to look like it has a KNS pin setup?
My theory: to allow people to still use KNS trigger pins. If they milled out that area and someone still wanted to use KNS trigger pins, it would leave a gap.
Sounds like a reasonable answer. But I’m curious as to why they didn’t go with a wider profile which would better accommodate both the thinner and wider KNS retainers.
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Folks, I am affiliated with the company. I do not however have the ability to sell or conduct business on M4carbine yet. I don’t know to what extent I am allowed to answer questions because of that, but I could answer any questions you may have if it is in fact allowed.
Paying extra for a billet receiver is bad economy. Forged receivers are stronger
Welcome to the forums!
Put to whom and how your affiliated in your signature, give the mods a courtesy call which should allow you to answer questions. Then, put on your asbestos longjohns and strap in for a rollercoaster ride through Flaming Hell. It will be tough to sell most of the members of this forum on something just because it’s new. The company and the product has to prove itself before it becomes accepted. The rule of thumb is “Shoot the Rifle” before passing judgement but the product has to offer something.
For example, the 2A lower is cut from a billet. It is known that AR receivers cut from a billet isn’t as tough as a forged receiver. the billet piece has all it’s grains running fore and aft and parallel to each other in the raw material. When the pockets for the magazine and trigger are machined out, the grain is interrupted, weakening the material.
A forging means the raw material is formed under pressure while in it’s plastic state. The grains follow the new form. Yes, some are cut during the final machining process but more follow the form. Some of the grain is compressed, increasing the strength as long as the forging process does not create granular inclusions. (This is why AR receivers are forged from 7075 instead of 6061. Early receivers were forged from 6061 but that alloy is susceptible to granular inclusions which cause severe corrosion).
Hawking a product made using a process that produces a weaker part then weaken it further lightening cuts it and charge two to three times more than the stronger product to save just a few ounces is going to be tough job. Paying $480 for a billet upper & lower compared to roughly $200 for a quality forged upper & lower is bad economy