VLTOR MUR Assembly?

[WS6]

How is the FA/deflector attatched to the MUR? Basically...is it solid...will it contain pressure from a case-rupture...does it wiggle...etc.

I saw a post a while back where someone was complaining about the difficulty of getting the ejection-port cover off for replacement with a laser engraved version. Is the MUR different this this respect as well from a standard upper?

ETA: I just went to their website and Vltor advertises the MUR as having Type II anodizing. Why the hell would they spend the time to make such a "strong" upper just to give it decorative anodizing? Wierd. Multi-piece beauty queen anyone? Not liking this : /

[TehLlama]

If it's a problem, the LaRue, Sun Devil, Rainier, and MEGA offerings are certainly out there - I'd go with any of those if you're concerned.

[trg42]

The assembly is dovtailed into the upper. A roll pin holds the unit from sliding out ( towards the back of the upper )

The reason someone said that it was difficult getting the ejection port covers off was because it requires you to remove the FA / deflector module . Its easy to put the pin on backwards ( like a traditional AR where the extra length goes towards the muzzle ) When you do this with a MUR the pin slides out of the hole on the left side of port cover.

I found this out the hard way !

I have no reason to doubt that it could handle pressure like a tranditional upper. Even though the module lookes relatively large, the upper reciever only has a small window that the forward assist passes through to so you have the forged reciever walls holding it together...not the forward assist / case deflector module

This module is precisely machined to fit into the upper with a dovetail. The two I have exhibit no play

See pics below

The MUR is machined from a pretty beefy forging ( current models are forgings )

Left to right we have the Sun Devil, a RRA standard flatop, Vltor. You can see the module sits ON a heavy wall forging . Top view shows how much the module protrudes





Notice the ejection cover hinge pin protrudes to the RHS on the Sun Devil ( and traditional uppers ) . The Vltor it goes the other way.

[WS6]

THANKYOU! I see, I SEE! Awesome pix. All I could find were from like 3 angles, over and over again, none showing how it went togather.

[jafount]

It's a total piece of cake to remove and replace it. I did mine no problem to install my dust cover door, as seen here:

[militarymoron]

ETA: I just went to their website and Vltor advertises the MUR as having Type II anodizing. Why the hell would they spend the time to make such a "strong" upper just to give it decorative anodizing? Wierd.

it's a typo. they're type 3 hard coat anodized.

[LonghunterCO]

It's a total piece of cake to remove and replace it. I did mine no problem to install my dust cover door, as seen here:

Whoes ejection port cover is that?

[crowkiller]

Whoes ejection port cover is that?

They have some like it here:http://www.harengser.com/store/prodd...R15_EJ_Gadsden

[WS6]

it's a typo. they're type 3 hard coat anodized.

Ah, gotcha! Thanks!

[500grains]

Does anyone know the weight diff between a VLTOR MUR stripped upper with FA as compared to a standard one like a DD M4 stripped upper? I am going to step out on a limb here and speculate that the diff is 1.5 ounces.

By the way, the SUn Devil is sweet looking also. I want both. It's a good thing AR15s are cheaper than sports cars.