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Thread: Troy TRX Extreme vs VTAC Extreme?

  1. #211
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    Quote Originally Posted by rob_s View Post
    I see two potential problems with this, even though I thought of it too.

    The first is that there are two small tabs that interface with the slots in the tub (this wouldn't work at all with the holes in the non-VTAC), and since the grip has only one screw these slots prevent rotation. Yes, if the contour fit the tube exactly it shouldn't rotate, but the tabs add another layer to the anti-rotation.

    The second is that the material is pretty thin. I don't know if you could go deep enough to match the curvature without eating through the top of the grip where the screw goes. At best you'd weaken that area.

    Regardless of the above, if I can find a sanding drum the exact diameter as the OD of the tube I'd get myself a bench grinder and give it a go.
    I think you are right about the material being too thin. I believe the best way re-shape the grip work would be to rough up the inside of it and fill it with about 3/8" of acraglas before re-drilling the center hole and sanding the top of the grip to match the contour of the tube.

    I already have a sanding drum from Grizzly that is just shy of the tube's diameter. I think it would work nicely for this project. I'll have to get some acraglas and give it a try. I'll post some pics if I have any sucess.

  2. #212
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    Barrel wrench from VTAC

    The Viking Tactics website says the barrel wrench is included:

    http://www.vikingtactics.com/handguard.html
    Last edited by SgtN; 08-19-10 at 17:50.

  3. #213
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    Quote Originally Posted by SgtN View Post
    The Viking Tactics website says the barrel wrench is included:

    http://www.vikingtactics.com/handguard.html
    None of the three rails I've used had the wrench.

  4. #214
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    Last month my father in law ordered a 13" VTAC version from Bravo Company, and it included the wrench. I ordered a 9" VTAC from a different vendor a few weeks later that did not include a wrench. I am willing to bet that mine is older stock, and the wrench is now included in current production.

  5. #215
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    Having a 9.0 from each in my hands I took some comparison photos. I find the difference in the wall thickness to be interesting. The picture is from the muzzle end. At the barrel nut end the profile of both walls is the same as theVTAC on the right in the picture below. The TRX rail gets thinner approximately 6" from the nut end.


  6. #216
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    Quote Originally Posted by hellion View Post
    I went with the Troy.



    OutBack sounds good. I havent eaten there in a long time.

  7. #217
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    Quote Originally Posted by Halfbreed_83 View Post
    Thanks for your reply!

    I was thinking about using the 11 inch handguard in conjunction with a KX3 flash hider and eventually a suppressor so length isn't the issue but the diameter is of more concern. I'm pretty sure the gas piston system is to big to work with the handguard. Is this the case?
    I put a 13" TRX on my LWRC and have put a few hundred rounds through it w/ no problem. Its a tight fit and took some drimmel work to get it on however.

  8. #218
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    here's mine on a complete Larue..

    Last edited by SKULL1; 08-28-10 at 19:39.

  9. #219
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    On the subject of weight, be sure you are comparing apples:apples, and understand what you're getting yourself into with these tubes.

    One could make the argument that the VTAC 9.0 is functionally no lighter than the DD M4 9.0 rail. Others may argue that the DD rail "needs" covers which add to the weight (I don't think it does, they are very well rounded rail sections), but the counter is that the Troy tubes have no heat resistance. We can go 'round and 'round on this, but the point of this post is simply be careful what you change in the thinking that it's going to get lighter. It may not when all is said and done.



    Starting point
    Colt 6933 upper w/ shaved FSB and DD 9.0 M4 rail



    Same upper, DD swapped for VTAC



    Add bottom rail section for VFG


    you can add 2.8 oz. to each of these for DD fixed front & rear BUIS
    upper w/ M4 rail & sights 2lbs 13oz
    upper w/ VTAC rail & sights 2lbs 12.4oz
    upper w. VTAC tube, lower rail, & sights 2lbs 13.2oz

    6933 MOE upper for comparison 3lbs 1oz




    Then there is the issue of the 9.0 Troy products being longer than other makes, which may cause issues with your other accessories.



    note the clearance for the can, or lack thereof. This was not an issue with the DD tube installed. Also the smooth transition from the Troy tube to the can means it is VERY easy to sneak the hand forward to the hot can, thereby necessitating adding MORE weight for a longer rail section and hand stop of some sort. Note also the lack of concentricity of the tube. Barrel and can are in line, as there has never been a baffle strike. Unsure if this will lead to sighting issues with irons or not.

    Last edited by rob_s; 09-04-10 at 14:05.

  10. #220
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    Wow, Rob. I think you'd reeeeally dig my 10.5"/9.0VTAC setup for the M4S.
    The lack of concentricity is my primary issue on that one - might have to open up the ID further on the bottom, it seems like it's 5-8 thousandths even after the shop had opened up the ID to 1.6.

    Rob, have you found anything similar to your MOE handguard front sling mount (just the bracket part) that would span between the two slits on the VTAC that might serve as a good mount (until the RSA shows up)?
    Looks like TROY is releasing their QD insert for the Troy version, which won't work on the VTAC.
    عندما تصبح الأسلحة محظورة, قد يملكون حظرون عندهم فقط
    کله چی سلاح منع شوی دی، یوازي غلوونکۍ یی به درلود
    Semper Fi
    "Being able to do the basics, on demand, takes practice. " - Sinister

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