AR-10 FDE quad rail

[RUSTYCOLT1860]

I'm brand new to this forum. I have a diamondback firearms AR-10 and it has the keymod handgaurd. I have scoured the internet looking for a quad rail handgaurd in flat dark earth. I hate the key mod I want the full quad rail system. I'm looking for length of 11" or longer. I have the 16" barrel

[unforgiven]

I have both more K mod than Mlok. Mechanically I can see Mlok being stronger of the 2. Neither is cheap for rails. I'm half dead already if I need a rifle for smashing heads I'll get the Garand. Just my 2 mags

[RUSTYCOLT1860]

1 hour ago, unforgiven said:

I have both more K mod than Mlok. Mechanically I can see Mlok being stronger of the 2. Neither is cheap for rails. I'm half dead already if I need a rifle for smashing heads I'll get the Garand. Just my 2 mags

I don't understand what you are getting at

[RUSTYCOLT1860]

This is what I'm looking for but can't find one

[unforgiven]

I see now

[98Z5V]

6 hours ago, RUSTYCOLT1860 said:

I'm brand new to this forum. I have a diamondback firearms AR-10 and it has the keymod handgaurd.

You need to determine what you have, first.   Is that DB10 rifle made for the DPMS-based pattern, or the Armalite AR-10 pattern?... 

Edited May 1, 2019 by 98Z5V

[shooterrex]

I think beltfed has a few diamondbacks maybe he knows what parts fit.

[RUSTYCOLT1860]

Mine is the armalite style 

[jtallen83]

1 hour ago, RUSTYCOLT1860 said:

Mine is the armalite style 

What criteria are you using? The reason I ask is I have seen some variations on the Armalite style that could cause issues getting the right rail. I have two Matrix receiver sets with the Armalite angle cut, one used the Armalite barrel nut thread pattern while the other used the DPMS pattern. Neither one will mate to my AR-10. 

[RUSTYCOLT1860]

5 hours ago, jtallen83 said:

What criteria are you using? The reason I ask is I have seen some variations on the Armalite style that could cause issues getting the right rail. I have two Matrix receiver sets with the Armalite angle cut, one used the Armalite barrel nut thread pattern while the other used the DPMS pattern. Neither one will mate to my AR-10. 

Mine has the angle on the receiver 

[edgecrusher]

That does NOT determine your rail choice. It’s the thread pitch on the receiver for the barrel nut. I don’t have it off hand but it’s in here.....

[98Z5V]

9 hours ago, RUSTYCOLT1860 said:

Mine has the angle on the receiver 

These DB10 receivers are exact copies of Matrix Aerospace receivers (and Matrix made all the Ruger SR-762 receivers), and I have an early Matrix with a DPMS-sized barrel threading on it. However, Matrix released them in both thread patterns.

DPMS pattern is 1 7/16" diameter by 16-pitch threading.  Armalite AR-10 is 1 7/16" diameter by 18-pitch threading.  That's what you need to discover on your upper.  The Armalite cut matters - for mating to a lower.  In these sets, the threading is what's gonna determine what handguard you need to get, to fit your rifle.

Once you know (and tell us) that information, recommendations will come out...  

Edited May 2, 2019 by 98Z5V

[DNP]

16 hours ago, jtallen83 said:

What criteria are you using? The reason I ask is I have seen some variations on the Armalite style that could cause issues getting the right rail. I have two Matrix receiver sets with the Armalite angle cut, one used the Armalite barrel nut thread pattern while the other used the DPMS pattern. Neither one will mate to my AR-10. 

Well ain't that a fustercluck?!

[98Z5V]

16 minutes ago, DNP said:

Well ain't that a fustercluck?!

Eh, mid-year changeover, or something.  Now, the Matrix sets you can get are DPMS-cut. 

 

[RUSTYCOLT1860]

17 hours ago, 98Z5V said:

These DB10 receivers are exact copies of Matrix Aerospace receivers (and Matrix made all the Ruger SR-762 receivers), and I have an early Matrix with a DPMS-sized barrel threading on it. However, Matrix released them in both thread patterns.

DPMS pattern is 1 7/16" diameter by 16-pitch threading.  Armalite AR-10 is 1 7/16" diameter by 18-pitch threading.  That's what you need to discover on your upper.  The Armalite cut matters - for mating to a lower.  In these sets, the threading is what's gonna determine what handguard you need to get, to fit your rifle.

Once you know (and tell us) that information, recommendations will come out...  

I found out today from diamondback firearms that it is the 1-7/16 x 16 pitch. I called them and they were very helpful and lady I talked to was super nice and very helpful. She didn't have the answer in front of her but ran around talking to the correct people to find the correct answer for me. I recommend them.

[98Z5V]

Now, you need to determine if that receiver is DPMS high or DPMS low...  

https://762ar.com/dpms-a3-handguards/

[RUSTYCOLT1860]

2 hours ago, 98Z5V said:

Now, you need to determine if that receiver is DPMS high or DPMS low...  

https://762ar.com/dpms-a3-handguards/

Mine is not a DPMS receiver it's the Armalite style 

[edgecrusher]

It has DPMS thread pitch. You’ll be buying a DPMS rail, again, nothing to do with your receiver cut. 

[RUSTYCOLT1860]

It appears to have the "thick"

[98Z5V]

It's either 1/8" thick or 3/16" thick.  Easy to measure with a tape measure.  Just trying to save you some headaches, and find the right part for you.

Pretty complicated, isn't it?  The only thing Armalite about the receiver set you have is the cut on the upper/lower...  

[bubbas4570]

Rustycolt1860, sometimes it seems like the guys ask for schitts that don't matter, but that information can be the difference between easy and a BIG FUKN MISTAKE.....or just alot of pain in the ass.

 

There are no mil-spec type of things in the 308 world, and therein lies many headaches for us. These guys have most of the stupid schitts figured out.....trust them.

[RUSTYCOLT1860]

I appreciate everyone's advice and input and am glad to have such a helpful community here

[Belt Fed]

Just curious, what is it about the keymod you hate. I prefer them and M lok over the quad. guess it's good we have different rails for different tastes.

[RUSTYCOLT1860]

17 minutes ago, Belt Fed said:

Just curious, what is it about the keymod you hate. I prefer them and M lok over the quad. guess it's good we have different rails for different tastes.

Just seems easier to put whatever attachment you want on and fine tune its position as opposed to having to keep undoing the rail and things seems to be a headache 

[Belt Fed]

3 minutes ago, RUSTYCOLT1860 said:

Just seems easier to put whatever attachment you want on and fine tune its position as opposed to having to keep undoing the rail and things seems to be a headache 

I got ya, it would be easier if you remove and adjust attachments a lot. I usually put mine back in the same place if I take it off. about all I have thou is a light and QD sling  mount. oh and a front grip of some sort.