If you use the Rainier 18" Ultramatch use the Armalite carbine gas tube. I though I read thru everything but guess I missed this info. Just got an email from Rainier and John states that the Armalite carbine gastube is the one to use for the Midlength gas system on Rainier's barrels. Hope this saves someone some time or money.

In case anyone is still interested I think I have the LaRue DPMS nut figured out, as well as figured out how to get the anti rotation keeper to work with the increased size of the MaTen uppers. I am still working on the keeper design itself, just have to sit down and take some measurements off of the upper for fit info. I have the nut drawn up and just have to get some quotes back from some shops on the costs before seeing if it is worth proceeding with more than one for myself. If anyone has any interest in this let me know

Pat

And just to tease everyone. . . .



Pat

Thanks last nite ordered just a standard midlength tube I better call and change it

Question on the upper assembly process - what upper block works with the MA-Ten upper to install the barrel? The DPMS LR-308 delrin one, something else?

Does the MaTen share upper/lower compatibility with any other brands?

I see that it is angle cut like the Armalites and the KAC. However would the lower and upper be interchangeable with either the Armalite or SR25?

I can tell you from first-hand experience the MA-TEN upper will slide onto a KAC or LMT lower, but the pins will not engage. Everything lines up, but the pins on the lower and the holes on the upper are not the same size. Most likely a bit of Dremel work on the pins or the holes would allow the MA-TEN upper to mount on a KAC or LMT lower.

Awesome work pat. I am interested to see what happens! I still have my ar10 rails!

I asked the same question in another thread and really never got a definitive answer. I'd like to know myself

A little FYI...if anyone is contemplating using the SEI Vortex flash suppressor for their Ma-ten build and they are installing it on a Noveske barrel; the correct model is the
1000V-Noveske Threaded 5/8 x 24 x .635±” thread depth.
Not the 1000V Threaded 5/8 x 24 x .735±” thread depth. According to Todd Krawczyk of Noveske Rifleworks LLC

Thanks! Sounds like it might be Armalite pattern then.

I think the panther claw for 308 from dpms should work. I ordered one and received it today. When I'm home ill try it and let you know.


Posted Via AR15.Com Mobile

Mort, check your IM.

The panther claw for 308 by DPMS fits great on MA-ten uppers

Thanks for checking that out!

No problem, I read it somewhere else here on ARFCOM, so I didn't buy it completely blindly

BTW: I love you avatar! What color? Anything done to it?

Not to be too off topic, but a 2006 cyclone gray (blue/gray metallic) and it's still stock beyond slightly more aggressive tires. I bought it right before the recession with plans to supercharge but then spending the money on an extra 100-200hp seemed like a bad idea when the bottom fell out of the economy. Can't eat a blower.

Can't eat an MA-Ten set either, but they are slightly more affordable. Just so this post isn't 100% off topic.

I plan on getting a 24 in barrel from Krieger with 5-r rifling and want to know if its "necessary" to have a muzzle device on a 24 in barrel or should i just have it crowned . Are there any benefits to having or not having one ? & no i live in commiefornia so dont ask about running suppresed

Guys, anyone know what the OAL is on a 12.5" barreled setup like the Noveske Leonidas. Their asking on the ATF Form 1. If it has a collapsable stock, is the measurement taken with the stock in or out?

Will someone measure the MA-TEN length? Thanks, Eddie

here is mine so far w/out the gas block and rails that will actually work with it (larue rails only work on ar10 (for now!)). the new rail i picked up on black friday is the troy mrf 13.2" fde rail. have a JP adjustable block coming, which should be hidden with the rail. i cannot WAIT to get it finished! called the atf today and my suppressor was approved too so I'm going to be one happy camper in a week!!

Nolo,

Rifle looks VERY NICE!!!!

Where did you get the Troy rail from?

the troy is on backorder right now, but i actually ordered it from troy. it was 25% off so I paid 180$ for it, and it comes with the dpms barrel nut. i can't wait to get it. should be here in about 2 weeks.

I have heard rumors that the Troy rails being made today are for the new style DPMS upper (a different rail height) and the MA-TEN is the old DPMS/AR-10 Rail Height, and that if you want one with a DPMS barrel nut that is for the old DPMS nut you have to special order it (tell the sales person that its for a MA-TEN). and that the special order ones are 2-3 months out.

I have been going through a similar mess with rails/handguards. I really want a quard rail stlye, and I want something 13-14" rather than a 12". My first choice was a LaRue but then I saw that it was for an AR-10, my next choice was Troy(because its the longest of most the quad rails i've found) but found out it was a 2-3 month wait (That kind of ruined my goal of finishing build by Dec. 31st). That leaves sampson and Rainier. (I belive Sampson acctually makes the Rainier ones) I also know that Rainier likes to use the Rainier ones on the MA-Tens that they build and they seem to fit great.

So at the end of the day I am really leaning towards the Rainier 13"....I just noticed that they are sold out of the DPMS configured ones

I have a Troy dpms style on backorder , & called them today & they said it should be ready next friday or saturday