The Daniel Defense That Started It All. $999.00

I have not seen one of these carbines in person but based on photos the front sight protrudes through what appears to be a one piece 12" rail.

If this is true how do they assemble this?

The only way that occurs to me is to attach the barrel to the upper receiver, then insert the barrel into the rail without the front sight, passing it through the front sight which is placed through the opening in the top of the rail, then attach the rail to the barrel nut and finally pin the front sight.

I am not a gunsmith, armorer or designer, nor do I play one on TV, and did not I stay at a Holiday Inn last night, but this seems awkward for initial assembly (although I am sure the manufacturer would have jigs and tools to make it fast and easy) but much more so if dis-assembly is ever required by Joe Gunutz in his basement.

Something such as replacing the gas tube that is relaitvely simple on a carbine with regular handguards would seem to require removing the front sight on the DD M4 V1.
 
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The Omega X rail is a 2 piece rail. You can google Omega X 12.0 FSP and read up on it and / or watch youtube install videos.
You do need a DD wrench for their proprietary barrel nut to remove/install. But only if you have to take off the barrel, not to remove the rail.
 
bruin048 said:
The Omega X rail is a 2 piece rail. You can google Omega X 12.0 FSP and read up on it and / or watch youtube install videos.
You do need a DD wrench for their proprietary barrel nut to remove/install. But only if you have to take off the barrel, not to remove the rail.
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Yes. Except the DDM4V1 rifles come with the DDM4 Rail 12.0 FSP which is a one piece rail, not the Omega X rail.

I found this which pretty much confirms what I thought:

The v1 upper is definitely the most difficult to assemble/disassemble. I'll try to articulate the disassembly process in a way that is easy to understand. Here it goes!

1. Most obviously, make sure weapon is completely unloaded.

2. Remove Upper from Lower

3. Using a 2.5mm allen wrench, LOOSEN the screws in the bolt up plate. Having a ball nose allen wrench will make this process much easier. Don't attempt to completely remove the screws at this stage. You just need to get the rail system loose for the next step.

4. Supporting the Upper Receiver and the front of the barrel, place the upper receiver group ejection port cover down and drive out the taper pins in the Front Sight Base. Be very careful not to damage the rail system in this step. there isn't a lot of room to work with.

5. With the taper pins removed completely from the FSB, secure the upper receiver group in a bench vice with a vice block or reaction rod. At this stage, use an appropriate wrench to remove the flash hider.

6. With the flash hider removed, you can now proceed with completely removing the screws from the bolt up plate.

7. With the screws completely removed, you may now remove the rail system, FSB, and gas tube from your barrel.

8. At this point your barrel is completely exposed.


This is a beast of a project so only do it if absolutely necessary. installation instructions are available on our website. I've pinned a link to the instructions in our industry section. Technical support is always available during the week so if you need assistance, just give us a call.

S/F
Joe

Joe Marler
Daniel Defense
jmarler@danieldefense.com
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If it is necessary to remove the rail I suspect the trick is having a suitable method of driving out the tape pins without damaging the rail or the pins. As Mr. Marler indicates "there isn't a lot of room to work with.".

Hopefully the need for this does not arise, if it does I would be thinking about taking it to a professional and if not feasible devising some sort of fixture to hold the upper receiver / barrel / rail.
 
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