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Posted: 6/15/2009 12:41:37 PM EST
[Last Edit: 6/15/2009 12:42:57 PM EST by Forrest_F150]
Installed on a DPMS LR-308 20" Heavy Barrell Rifle:

Troy Industries MRF-308 Quad Rail:
http://troyind.com/MRFRails.html

Took the DPMS Railed Gas Block off the rifle and used this Sampson Low Profile Extended (to cover the A2 front sight post holes in the barrell) Gas Block:
http://www.samson-mfg.com/ar-15_html/product/LP-GB.html

I must say the install was a bit of pain in the ass. I had problems getting the Gas Block Roll Pin all the way through the Sampson Gas Block.
The Troy rail comes with it's own Barrell nut for DPMS rifles and requires you to file or dremel a part of the nut to allow clearence for the gas tube.
And I had to purchase the DPMS Free Float wrench to get the stock DPMS barrell nut off the rifle.

All in all it took awhle to gather everything together to do the install but it's done and the rifle shoots great and I think looks good.



Link Posted: 6/15/2009 4:10:56 PM EST
Nice looking rifle,,,let us know how it shoots.What scope are you using?
Link Posted: 6/15/2009 4:13:10 PM EST
Very nice!
Link Posted: 6/15/2009 4:46:02 PM EST
Originally Posted By exhogflyer:
Nice looking rifle,,,let us know how it shoots.What scope are you using?


It's a cheap Centerpint 3-9 x 32 scope that I had laying around. I still need to find a quality scope that doesn't break the bank. I need a higher powered spotting scope too.

It shoots ok considering the cheap scope. I've only taken it out once since putting the rail on it and didn't have a lot of time to dial it in corectly.

I need a Harris bi-pod too.
Link Posted: 6/15/2009 10:31:05 PM EST
I want to do the same thing to my gun (pictured) but it looks like such a pain in the butt I am not going to do it. It shoots tight groups now, which is what a gun like this is for, so I am going to say, leave well enough alone. Looks good, glad you were able to do it. I adore quad rails!

http://www.guns2roses.com/vbimages/cafe_n32.jpg
Link Posted: 6/16/2009 8:22:04 AM EST
If you don't want to do all of the work, just slap a DPMS Quad Rail on it:



It used to be a LR-308 with the standard round tube handguard, then I switched it out for the DPMS Quad Rail. Take the gas block off, remove the old handguard, put the quad rail on, put the gas block back on, end of story.

Nice work, best of luck,
Capt Richardson
Link Posted: 6/16/2009 10:46:17 AM EST
Nice gun! Now you can make sweet (but loud) sounds of freedom.

Mike
Link Posted: 6/16/2009 11:45:44 AM EST
Wow, That looks schweet! I am diggin' the rail covers as well.
Link Posted: 6/16/2009 12:27:43 PM EST
Originally Posted By captrichardson:
If you don't want to do all of the work, just slap a DPMS Quad Rail on it:

http://i26.photobucket.com/albums/c131/captrichardson/DPMS-308-2.jpg

It used to be a LR-308 with the standard round tube handguard, then I switched it out for the DPMS Quad Rail. Take the gas block off, remove the old handguard, put the quad rail on, put the gas block back on, end of story.

Nice work, best of luck,
Capt Richardson


Is this a free float rail?
Link Posted: 6/16/2009 12:51:56 PM EST
[Last Edit: 6/16/2009 12:52:32 PM EST by captrichardson]
Originally Posted By Bhart89:
Is this a free float rail?


Yes - http://www.dpmsinc.com/store/products/?prod=1844&cat=1765

Capt Richardson
Link Posted: 6/17/2009 5:36:27 PM EST

Originally Posted By captrichardson:
Originally Posted By Bhart89:
Is this a free float rail?


Yes - http://www.dpmsinc.com/store/products/?prod=1844&cat=1765

Capt Richardson

Do you have to remove the barrel nut in order to switch that out with the DMPS rail? Any special tools needed?



-Deke
Link Posted: 6/17/2009 5:43:08 PM EST
no you don't.. but you will have to remove the Gas Block and loosen the Castele Nut type ring that holds the rail/guard on. After that you just screw the rail/handguard off.

no special tools required. just a allen key for the gas block and i used a screw driver and hammer to loosen the ring, some people use a pipe/strap wrench to do that but i was not able to...
Link Posted: 6/18/2009 4:13:19 AM EST
[Last Edit: 6/18/2009 4:21:52 AM EST by cav_scout_tj]
Do you have to remove the barrel nut in order to switch that out with the DMPS rail? Any special tools needed?


Originally Posted By Forrest_F150:
no you don't.. but you will have to remove the Gas Block and loosen the Castele Nut type ring that holds the rail/guard on. After that you just screw the rail/handguard off.

no special tools required. just a allen key for the gas block and i used a screw driver and hammer to loosen the ring, some people use a pipe/strap wrench to do that but i was not able to...


What the crap?!?! There is no way. I have a DPMS with the standard tube. And yes the front parts unscrews. But the remaining barrel nut part is only threaded for 3/8" and the threads don't even start till you are 1"+ in front of the receiver. As such, there is no way you could get the castle nut lock ring in the right place. That means they use different barrel nuts, and so makes it just about as hard to swap as any other barrel nut required rail system. Its just cheaper, not easier. Call DPMS if you like.

You can plainly see the seam 1" in front of the upper:


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