Picking up my AR-10A4 soon, and have questions.

[Micro]

Hi folks.  I'm a new member.  Hoping to get some help.  Don't be too hard on me if these have been asked before  :):

1)  I need some recommendations for BUISs (front and rear).  The gas block plane is lower than the reciever plane so I know I need a front sight that accomodates that difference.  Other than the MI sights on the Armalite website, are there any others?

2)  I'd like to replace the stock and handguards with Magpuls.  I understand the buffer tube on the Armalite AR-10 is mil-spec.  I'm assuming a Magpul ACS (mil spec) will work?  What about MOE hand guards (mid length), any problems there?

3)  I'm going to be mounting a Burris 1.5X-6X Xtreme Tactical.  I want a quick detachable mount.  Any suggestions? 

Thanks.

[unforgiven]

Welcome brother Micro the guys here are very helpful,I know just enough to get in trouble.Shoot on bro.

[planeflyer21]

Howdy Micro!

Got dejavu.

I'm real interested in hearing about that scope you chose...was looking closely at that myself.

Jon

[98Z5V]

Hi folks.  I'm a new member.  Hoping to get some help.  Don't be too hard on me if these have been asked before  :):

1)  I need some recommendations for BUISs (front and rear).  The gas block plane is lower than the reciever plane so I know I need a front sight that accomodates that difference.  Other than the MI sights on the Armalite website, are there any others?

2)  I'd like to replace the stock and handguards with Magpuls.  I understand the buffer tube on the Armalite AR-10 is mil-spec.  I'm assuming a Magpul ACS (mil spec) will work?  What about MOE hand guards (mid length), any problems there?

3)  I'm going to be mounting a Burris 1.5X-6X Xtreme Tactical.  I want a quick detachable mount.  Any suggestions? 

Thanks.

1) Google search "gas block front sight," and alot will come up.  There are several manufacturers for these, and most are very high quality.  Check back with some of your finds, and we will certainly opine...  ;D

2) Yes, on the stock. Maybe, on the MOE handguards.  Minor fitment may be required on those handguards.  Very minor.

3)  Quick suggestions, here.  Higher priced and high quality, true quick detach: LaRue and Bobro.  Lower priced, and still high quality" Armalite one-piece, which uses two thumb-screws for attachment/removal.  Doesn't have a lever(s) to throw, but it's a damn good piece, and far cheaper than the other two I mentioned.  There are others out there, also, but those are great.

[planeflyer21]

Does A.R.M.S. do a quick release mount anymore?

Jon

[Retired JM]

Rear BUIS are easy, any rear sight for an AR15 will work. The front sight is a different issue, since the mounting surface is .34 inches lower than the receiver rail. I only know of three companies that make AR10 specific front sights: GG&G, Midwest Industries, and Armalite itself.

For scope mounts, the LaRue and ADM one piece mounts with QD levers are hard to beat. I'm using the ADM Recon-X on my AR10 and really like it. It's a solid bit of kit. I really like the adjustable lever tension system ADM uses. So simple a caveman (or 11B) can use it.

I'm using the mil-spec ACS on my AR10 as well. It's an excellent choice.

I think you'll be pleasantly surprised by the accuracy of the Armalite. Armalite says the AR10A4 is a 2.0-2.5 MOA rifle. It'll probably do much better than that.  My only gripes on the Armalite are the bolt-on gas block (The bolts got a coat of blue loc-tite prior to shooting it.) and the castle nut was unstaked (A screwdriver, hammer and 30 seconds took care of that.)

When you get your stick sorted out, throw some pics up.

[Micro]

Thanks for the responses.  I'll check out the options that have been presented.

With respect to the BUISs:  I think I prefer GG&G to the MI.  I want to put a Magpul MOE handguard on the rifle and understand that there may not be sufficient clearance for the MI front sight to fold backwards with that handgaurd installed.  And I don't care for it folded forward. 

This is obviously the GG&G for the AR-10:

http://www.gggaz.com/flip-up-front-sight-for-ar-10-dovetailed-gas-blocks.html

Will this GG&G rear sight work with that front sight?

http://www.gggaz.com/a2-back-up-iron-sight-buis.html

[98Z5V]

I completely forgot to mention ADM QD scope mounts, and I even have one...  :o

[Retired JM]

I'm 99% sure that it'll be compatible, give GG&G a call/e-mail just to be 100% sure. The objective is to get the front and rear sight on the same sighting plane, so the front sight has to be taller; no other modification to the sight system is needed. Should you decide to go with a railed forend, you can use any AR15 sight set by mounting the front sight on the end of the top rail instead of the gas block.

ARMS still has a QD line of mounts. But there are so many better choices out there now.

As for forgetting about kit that you have, it's a sign that you've got too much kit ;)

[98Z5V]

As for forgetting about kit that you have, it's a sign that you've got too much kit ;)

NEVERRRRRRRRRRRR!!!  <laughs>

[Micro]

I contacted GG&G about the front sight and rear sight I mentioned above.  Here is the answer I got...

The Flip Up Front Sight For AR-10 Dovetailed Gas Blocks" (P/N: GGG-1323) will be the correct height to use with our rear sights. I recommend our MAD BUIS P/N: GGG-1006 for a AR10. It is our lowest profile rear sight. The A2 sight is made to fit around the rear of an AR15 upper receiver when folded. A AR10 upper receiver is wider and the A2 will not fold down properly around it.

Shane Worley

Product Specialist

GG&G, Inc.

[98Z5V]

I recommend our MAD BUIS P/N: GGG-1006 for a AR10.

I've got that rear sight on one rifle - it's damn good.  <thumbsup>

[Scaup58]

Here's what it takes to mount a Magpul MOE handguard on an AR10.  The heat shield needs to be slit with a Dremel & cut off wheel as shown in the picture below.

Then re-contour the aft section so that it will fit around the chamber area of the barrel like so.

[img width=810 height=607]http://i940.photobucket.com/albums/ad248/MBuechle/AR10/PC010142.jpg

I found as many others have, that the handguards are slightly long for the Armalite.  I moved my front sight forward about .015" and the handguard fit without any grinding. 

It fits snug without any slop or movement.  If you opt to move the FSB or gas block, check it's current gas hole alignment with the gas port via the soot ring around gas port

on barrel to make sure that you can move block forward without partially covering gas port.  The gas port on my FSB was larger than the barrel port and allowed forward movement.

The other option is to remove material from end of handguard. 

Here's a pic of the finished product.  I really like this handguard, it's more solid and feels better than the GI ones and gives you some equipment mounting options.

[img width=810 height=253]http://i940.photobucket.com/albums/ad248/MBuechle/AR10/AR10-2.jpg

[Micro]

Thank you very much for the photos showing your technique to install the MOE handguard.  It is a VERY useful response.

I did write back to GG&G asking about why their standard BUIS flip rear sight would not work well with the AR-10.  I received another VERY useful and courteous response...

When I say "fold around" I am speaking about the "ear" or rear tab above the charging handle that is narrower than the rail itself. Its hard to explain so I'll use pictures.

The AR10 is on the right and a AR15 on the left. See the flat area above where the charging handle would be, It is shorter and wider on the AR10

This picture shows how the A2 sight folds around this area on a AR15.

[img width=810 height=607]http://i1125.photobucket.com/albums/l590/RowlandParks/009-1.jpg

This picture shows how on a AR10 it can not fold down because the receiver is wider and shorter.

[img width=810 height=607]http://i1125.photobucket.com/albums/l590/RowlandParks/011.jpg

This picture shows how well the MAD rear sight sits on a AR10. It lays flat and overhangs the receiver so it is easily deployed even with gloves on.

[img width=810 height=607]http://i1125.photobucket.com/albums/l590/RowlandParks/012.jpg

Feel free to email or call me if you have more questions. That's what I'm here for.

Shane Worley

Product Specialist

GG&G, Inc.

Shane Worley has been prompt, courteous and extremely helpful in his responses.  I'm now sold on the GG&G Flip Up Front Sight for the AR-10 and the GG&G MAD BUIS for a rear sight. 

[eagle10]

@ Micro, I thank you for posting the pics and emails from GG&G, I was eye balling these same sites as I am starting an AR10 build myself, I went straight to GG&G's sight because I have so much of their stuff on other rifles I have and it is Fantastic! These will be the BUIS I use as well. Just another note, I am looking hard at their AC-30 Accucam QD mounting base (30mm tubes)for my scope, I have this, but for an (slightly different than this one I mentioned)ACOG on another rifle I have and its great. Good Luck with your build.....