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Thread: Samson Evolution Rail-First Impressions.

  1. #81
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    Quote Originally Posted by nynco View Post
    Just to post some feedback. I ended up selling my samson evo rail system because no matter what I did, the rail kept on sliding off the barrel nut. When I was bench firing the recoil would cause the rail to walk forward. Within 50 rounds there would be at least a 3mm gap. It was so bad that I would always have to keep a allen wrench handy to reseat it. Which would mean it would always throw off my irons. I am not sure if they fixed this issue on newer models. I purchased mine way back in march, before Rainier even released theirs. Just wondering if others ended up having the same issue. I replaced it with a troy and never got that walking issue again.
    I would bet money you had the heat sink installed backwards. I read elsewhere of users reporting issues with loose handguards until they read the instructions closely and re-installed the heat sink properly.

  2. #82
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    Quote Originally Posted by Nightvisionary View Post
    I would bet money you had the heat sink installed backwards. I read elsewhere of users reporting issues with loose handguards until they read the instructions closely and re-installed the heat sink properly.
    +1 and ditto to boot on this.

    IF you install the heat sink incorrectly ( ie,, backwards!) it will not lock down properly.

    Thankfully it's an easy fix.

  3. #83
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    Can anyone report on the heat management of these handguards compared to the Troy VTAC handguards?


    -B
    RIP, Jeff Dorr: 1964 - July 17, 2009


    "When young men seek to be like you, when lazy men resent you, when powerful men look over their shoulder at you, when cowardly men plot behind your back, when corrupt men wish you were gone and evil men want you dead . . . Only then will you have done your share." - Phil Messina

  4. #84
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    Quote Originally Posted by BAC View Post
    Can anyone report on the heat management of these handguards compared to the Troy VTAC handguards?


    -B
    They get hot.

    Due to the larger diameter of the guard itself and the further distance from the FSB plus the heat sink you will most likely see better heat dissipation on the Samson unit but this is pure speculation as i am unwilling to sit at the range with a thermometer and take surface temperature readings.

    If you're blasting that much down range you're going to have to run a glove with either brand.

  5. #85
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    Quote Originally Posted by Nightvisionary View Post
    I would bet money you had the heat sink installed backwards. I read elsewhere of users reporting issues with loose handguards until they read the instructions closely and re-installed the heat sink properly.

    That would be a no, I had it installed correctly. Exactly the same way as the person a few pages back with the 9mm AR. I really wanted to like the Evo rail. It was larger and fit into my hands just right. But the lack of some form of lock other than a friction lock just did not work out in reality. Which from day 1 I had issues. I shotgunned the weapon, that pushed the rail forward. Tightened the crap out of it, that helped a little. Then I went to the range with my grip pod on (I know you all think they suck) and the recoil action just kept on moving the rail. It would creep after 50 rounds. I attribute this to the fact that there is no lip or edge. Just the clamping pressure of T6 aluminum (which is pretty soft grade).

    Samson should really make a hybrid locking mechanism a mix between their split bushing and the locking mechanism from Troy.
    "You done good. Remember the rules of home gun smithing: Measure it with a micrometer, mark it with chalk, cut it with a torch/dremel, grind it to fit, paint it to match with a sharpie!"

  6. #86
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    Nyco,

    Did you return the rail to Samson and ask for a replacement?

    So far you're the first person that ive heard that has had this issue with the rail design.

    The rest of us are having no issues whatsoever.

  7. #87
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    With the amount of time, effort, waiting and cost of shipping, I thought it was just a waste of time. Shipping the upper back alone, was going to cost me 20 bucks out of pocket. So I sold it rather than deal with that hassle. I only posted it to see if others had the same issue.
    "You done good. Remember the rules of home gun smithing: Measure it with a micrometer, mark it with chalk, cut it with a torch/dremel, grind it to fit, paint it to match with a sharpie!"

  8. #88
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    Quote Originally Posted by nynco View Post
    That would be a no, I had it installed correctly. Exactly the same way as the person a few pages back with the 9mm AR. I really wanted to like the Evo rail. It was larger and fit into my hands just right. But the lack of some form of lock other than a friction lock just did not work out in reality.
    If you are not paying close attention it is easy to install the heat sink/bushing incorrectly. At first glance an incorrect installation looks just like a correct install as pictured on the 9mm AR.

    My Samson Evolution only has a couple hundred rounds through it but it suffered through a 5 day Elk hunting trip in the Oregon coast range under terrain and weather conditions that are known to make or break equipment. It's rock solid.

    The Samson MFG instructions ( http://www.samson-mfg.com/manuals/In...n%20Series.pdf ) are not very clear so I watched a couple of videos before installing mine to make sure I did it right. Here are some clarifications and additions I made to the Samson instructions:



  9. #89
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    Perhaps I had it backwards. I really don't know. It looked the same to me. To me the rail performed fine until I put a bipod/grip pod on it. If you get a chance to test it that way, let me know. If there really is a difference like you and the picture says, I really wish that Samson had made that part stupid proof. Because etching a label or a notch might have saved me as a user/customer.
    "You done good. Remember the rules of home gun smithing: Measure it with a micrometer, mark it with chalk, cut it with a torch/dremel, grind it to fit, paint it to match with a sharpie!"

  10. #90
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    This one runs cool enough for the wife to shoot all day:
    Last edited by Jambi; 03-03-12 at 11:20.

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