DPMS AP4 Quad Rail

[savageshooter308]

I got a DPMS AP4 that I like except the hand guard. Id like a lo pro gas block and a mid length hand guard. I see DPMS shows a carbine and a "standard" length. I take "standard" to mean rifle length like whats on my SASS, which would be to long. Where can I get a mid length quad rail to fit my AP4?

[survivalshop]

DD has a mid length,I think you can get it for the DPMS bbl. nut system . You will have to ask them or some one here will speak up.

I know from wanting a mid length gas system ,there are not many out there in mid length for 308 .

https://www.danieldefense.com/?page=shop/detail&product_id=21

[savageshooter308]

The DD products are out of the range im willing to spend. I just got an email from DPMS conferming the standard is 12" and they do not make or offer a 9" mid lengeth. Bummer.

[axaviere]

try yankee hill machine or just type mid length 308 quad rail in yahoo and dig. try JSE.com or Rguns.com as both have stuff in all sizes listed for sale at really good prices. if your not in a rush, they get stuff in as fast as they can if its out.

[metalmole]

I don't know how many folks know this, but DPMS changed the top height of there AP4 uppers some time early this year. I had an older AP4 upper with a DD middy handguard, I was designing a gas piston gas block to interface with the rail, after I got my project finished and working I decided to build another upper using the same height gas block and DD rail, WHAT!!  the new AP4 upper was about .050 lower than my older one. Some searching around I found a post that someone confirmed what I had found. Today a customer came in with a new AP4 and a Tray rail, and sure enough the upper was about .050 lower, it looked like s--t, told him I didn't know what he should do. I think the rest of the manufactures of other DPMS type uppers are sticking with the original height.

Can or does anyone else have any knowledge of this  ?? 

[imschur]

Theres been a few versions. Someone posted the dimensions in another thread. Im sticking with Fulton Armory if I want a DPMS.

[98Z5V]

DPMS upper height info here:

http://308ar.com/forum/index.php/topic,260.msg1623/topicseen.html#msg1623

[metalmole]

Thanks 98Z5V for the info,

I think they changed there uppers so customers who buy an upper/rifle with the plastic handguards will have to buy there railed handguard insted of the aftermarket. I know I have purchased my last DPMS anything, I think they will realize they shot thereself in the foot, there are some pretty good manufactures coming along  better compnets.............