Hello,

Just wanted to give an addition to your list of Armalite compatible lowers.

What I have is a CNCed 7075 billet lower. It is made by a company called Aircraft Armament. Some of the lowers have cuts on the front take down pin area to allow a "belt fed upper". (mines not one of them)

Here are some pics! (wish I was better with a camera)





Enjoy. Thanks for the great knowledge based thread!

< screen name says it all.

this guy is making a new one

It would be very helpful to have the tourqe specs question there
I got this off the Armalite website since I wasn't able to find it here in the FAQ

10-22. QUESTION: What are the torques on an AR-10 barrel nut and the gas keys?

ANSWER: At the factory, the barrel nut is torqued by feel. But, studies have shown the torque for the M15 should be 35 - 80 FOOT lbs. and for the AR-10 45 - 90 FOOT lbs. The torque for the gas keys for both the M-15 and AR-10 should be approximately 55 INCH lbs.

Guys what is the AR10 SASS barrel torque?
Thanks

Did I miss the FAQ entry about the AR-10 vs AR-10(T) ejection port door retaining rod and how you need the AR-10(T) version if you have a FF handguard?

It'd also be nice to see info about the uppers with forward assist collected here.

should be .875 to fit the t barrel

I just have to question a few entries in your guide, you say:

KAC is KAC, and DPMS is based off of it.

DPMS- based off the KAC- not chromelined and triggers usually suck. Some people love them and have gotten a good gun. Some have had to get a new barrel and work the triggers.

The only thing in common with the KAC and the DPMS is the original AR10 mag pattern and maybe the upper receiver thread.

Actually the armalite is closer to a KAC as the uppers interchange (small varience in pin size) Armalite even made upper receivers to fit KAC SR25 lowers, the carriers and bolts interchange as do other parts, the only incompatability is the mag well pattern,

Also not listed is the Larue OSR which is compatable with the SR25 and therefore the AR10 with some minor pin dia changes.
also are you sure the LWRC REPR is totally proprietry as it looks to be the same format as the Larue and SR25

None of this is a critisism of you FAQ, just a second opinion

Thanks for the info.. was specifically looking at info about buffers.. really helped.

Does the NY ban specifically ban the ArmaLite? If not, why spend extra money for the Aero?

If you read about 2 posts up, the Knights and DPMS uppers are not interchangeable.

Don't do all the mix and try to match stuff, pick one brand of .308 AR(whichever brand that is) and stick with it for uppers, etc.

And the DPMS/Remington is a .308 AR, not an AR10 type.

As for the ejection port retaining rod...I believe the AR10(T) upper receiver version rod, which is sligtly longer, is only needed with the Armalite FF handguard. I recently installed a PRI GEN 3 FF handguard forend and the AR-10(T) rod was too long by about an 1/8". Thinking the rod was needed for all FF forends was the reason I bought it to begin with. What began to happen was the barrel nut was catching and beginning to bend the rod as it got towards the end of the threads. I had to cut, smooth and refinish the rod end in order to continue the torqueing process without completely destroying the rod in the process, or at least making an ugly bend out of it. Thank god I caught it just as it started to flex, or bend upwards. I was able to straighten it back out in my vise and it functions and looks like nothing happenned. I would like some formal clarity from Armalite on this part myself for future projects...

I can confirm that is true. Also LMT's 308 MRP uses the same bolt catch as KAC.