DD Lite rail install advice needed.

[nickdrak]

Gents,

I am awaiting arrival of a 10.0 Lite rail that I ordered from Bravo Co. Along with the proprietary wrench. This will be my first time working with the DD Lite rail system, so any advice on making the install go as smoothly as possible from some of the DD experts (Gotm4) is greatly appreciated. Thanks in advance!!!

Stay safe,
Nick

[Pistola]

Here you go, courtesy from the guys at weaponevolution. It's the 7.0, but it installs the same.
http://www.weaponevolution.com/forum/showthread.php?t=1

[spamsammich]

It helps A LOT to have the DD barrel nut wrench. You can get by with a spanner in a pinch. I torque the barrel nut down between 65-70 ft-lbs. Usually 65. When you're aligning the upper rail, use a carry handle or an ADM mount to bridge the upper and rail. Tighten the cap screws on the lockup ring evenly in an opposing pattern.

[nickdrak]

Perfect! Thanks man!!!

[bkb0000]

up-to-date armorer's tools have them incorporated

http://c1.ac-images.myspacecdn.com/images02/112/l_031dd93da6204b99b4aded6e1b4dea64.jpg

funky looking guy next to the spanner. works for castle nuts and lite barrel nuts.. probably some other shit too.

[nickdrak]

Thanks guys, I already have the DD wrench en-route as well.

[Iraqgunz]

bkb,

Who makes that particular wrench and how do you like it?


up-to-date armorer's tools have them incorporated

http://c1.ac-images.myspacecdn.com/images02/112/l_031dd93da6204b99b4aded6e1b4dea64.jpg

funky looking guy next to the spanner. works for castle nuts and lite barrel nuts.. probably some other shit too.

[Robb Jensen]

I'm 99.9% certain that wrench will not work on a Daniel Defense Lite Rail barrel nut.
That wrench appears to have a standard barrel nut wrench, 3 pin bbl nut wrench, CAR stock nut wrench, M4 stock nut wrench and the flash hider and A2 stock wrenches.

[tr1kstanc3]

Here you go, courtesy from the guys at weaponevolution. It's the 7.0, but it installs the same.
http://www.weaponevolution.com/forum/showthread.php?t=1

excellent guide! thanks for the link.

[bkb0000]

I'm 99.9% certain that wrench will not work on a Daniel Defense Lite Rail barrel nut.
That wrench appears to have a standard barrel nut wrench, 3 pin bbl nut wrench, CAR stock nut wrench, M4 stock nut wrench and the flash hider and A2 stock wrenches.

i'm 100% certain that it does... odd that you should hold that belief.

[bkb0000]

bkb,

Who makes that particular wrench and how do you like it?

not sure who makes it.. got it from a smithing tools guy that does the local gun show. if i can find the guy's card, i can give you his number.

[Robb Jensen]

i'm 100% certain that it does... odd that you should hold that belief.

Can you post a pic of it or video of it on a DD Lite Rail bbl nut and then held up against a m4 stock nut?

[spamsammich]

I've found that the pitch of the 3 tines is different between the DD bbl nut wrench and a standard carbine castle nut wrench. Close, but not identical and the castle nut wrench would have needed some grinding to get it to match.

[Robb Jensen]

i'm 100% certain that it does... odd that you should hold that belief.

FWIW my DD Lite Rail wrench measures across the teeth 1.2565"

M4 castle nut wrench measures 1.203" across the teeth.

[bkb0000]

Can you post a pic of it or video of it on a DD Lite Rail bbl nut and then held up against a m4 stock nut?

http://c2.ac-images.myspacecdn.com/images02/66/l_61c63ba757fa428d9a2f5d8881a4a8b5.jpg

i don't have any uninstalled lites, so this is the best i can scrape up.
http://c4.ac-images.myspacecdn.com/images02/67/l_edcb9727e35b4021a6f6abfd86b3c167.jpg

[bkb0000]

I've found that the pitch of the 3 tines is different between the DD bbl nut wrench and a standard carbine castle nut wrench. Close, but not identical and the castle nut wrench would have needed some grinding to get it to match.

i didn't have to do any grinding on this one. it's a little loose on castle nuts, but still torques them down fine.

[C4IGrant]

Here you go, courtesy from the guys at weaponevolution. It's the 7.0, but it installs the same.
http://www.weaponevolution.com/forum/showthread.php?t=1

One comment on installation. It is generally better to tighten the barrel nut (any barrel nut) once and then back off. Tighten again and then back off and on the third time, tighten down fully.

This is done to "seat" the receiver threads to the barrel nut. This is also a good way to help with gas tube alignment.

The torque value should be anywhere between 40-60 a barrel nut, but can go higher if need be.


C4

[Robb Jensen]

DD says between 50-75ft lbs for torque.

Here's a genuine DD Lite Rail wrench on a Lite Rail bbl nut an a M4 stock wrench on a M4 castle nut.

http://img.photobucket.com/albums/v408/gotm4/IMG_9643.jpg
http://img.photobucket.com/albums/v408/gotm4/IMG_9644.jpg

The DD Lite Rail wrench on a M4 castle nut and a M4 stock wrench on a DD Lite Rail bbl nut.

http://img.photobucket.com/albums/v408/gotm4/IMG_9646.jpg


A close up on the M4 stock wrench on a DD Lite Rail bbl nut.

http://img.photobucket.com/albums/v408/gotm4/IMG_9645.jpg


Sounds like the maker of said wrench made it fit both (aka jack of all trades but master of none). I'd be extremely careful when using it, it may very likely dick up both a DD Lite Rail bbl nuts and M4 castle nuts. I'd much rather use the proper tool for the job......

[bkb0000]

well it fits perfectly on the lite barrel nuts, and, as i said, a little loose on castle nuts. i've done a handful of lite nuts with it, and 10+ castle nuts, both going on and coming off. no problems thus far.. perhaps i'm just a lucky SOB. being as skinny as it is, it does booger the lite nut just a tiny bit- but not even as much as a spanner.

[nickdrak]

Thanks guys, I got the DD rail installed & my new upper completed. My pc is down until Weds, so pics will have to wait until then....