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Thread: Troy vs KAC drop in rails

  1. #11
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    What about the DD Omega? Its light and very sturdy. At least it feels that way on my upper.

  2. #12
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    I've tried a few non-KAC rails and have gone back to KAC, Mack!

    I don't like rails systems that deviate KAC rail width and height. The top rail matches the flat top other and the bottom and sides are recessed relative to the bore. That's the way it's supposed to be.

    And anyway... you can get the KAC blemishes from knightarmco sales site for $150. I have bought 3 of the RAS blemish units.

  3. #13
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    I got my brand new kac from ebay for $135 with full a full rail panel set and the broomhandle.
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  4. #14
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    Quote Originally Posted by JonnyVain View Post
    Well please post a link with where you're getting your info, because the site I'm looking at says 17oz.

    http://www.knightarmco.com/
    First of all, we're talking past each other. If you actually bothered to read my post, you would see that I did source my information with a link. Additionally, you would see that we're discussing carbine length rail systems here, not rifle length. The closest KAC analogue to the Troy MRF-DI is the M4 RIS or M4 RAS.

    Also, the link that you cite says the RAS weighs 11.6 oz (and the picture includes rail covers, so I'm sure that explains the extra weight along with the fact that it has heat shielding, unlike the Troy).

  5. #15
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    My department has been using Troy drop-in rails for about a year now with no complaints. Super solid, with no play at all. Troy rails are also the only four-rail systems that fit on our Big Sky Racks. While the Troy doesn't have a heat shield, I really don't see the need for one, none of our patrol rifles are full auto, and I've shot magazine after magazine without burning my hands, so I don't really see the need for it.
    The opinions expressed on this board are mine and mine alone. They do not represent any departments or organizations I may be a member of.


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  6. #16
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    Im using the Troy and it is solid with zero play, and the TD VFG is good and tight on mine. It has 4 slotted screws that secure the two halves, but I don't think their completely necessary because it's solid without the screws installed.

  7. #17
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    I have KAC RAS on my carbines and they work fine. For $160 including the vertical grip and panels I find them to be fair deals. I only attach vertical grips and lights to my rails and a tiny but of lower rail movement does not bother me. A friend has the Troy Battlerail Drop-In CAR/M4 model (the KAC RAS equivalent) and it works fine as well. The KAC RAS has a leaf spring and a clamp with screw on the upper portion of the rail which locks it into the handguard cap and delta ring, respectively, nice and tight. The regular RAS lower just drops in like the handguards and has a heat shield. The Troy Drop-In just drops in like the handguards, however, the upper and lower pieces screw together. The Troy also has holes for QD sling swivels. I can get you pics of both if need be. I like the Troy design better to be honest (the rail bolting together to become "one piece") but the KAC works fine and is battle tested. Also, I believe the reason for the leaf spring and clamp with screw design were to minimize any possible movement on the upper piece of the RAS so that components mounted to the rail, such as a PEQ or the like, would maintain their zeros. Lastly, you can mount a M203 to your rifle if using the RAS, but I do not know if this is possible with the Troy rail.
    Last edited by boganz45; 03-06-10 at 00:39.

  8. #18
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    Quote Originally Posted by justin_247 View Post
    First of all, we're talking past each other. If you actually bothered to read my post, you would see that I did source my information with a link. Additionally, you would see that we're discussing carbine length rail systems here, not rifle length. The closest KAC analogue to the Troy MRF-DI is the M4 RIS or M4 RAS.

    Also, the link that you cite says the RAS weighs 11.6 oz (and the picture includes rail covers, so I'm sure that explains the extra weight along with the fact that it has heat shielding, unlike the Troy).
    First of all, point to where the OP stated he was looking for a carbine rail. I was the first person to post anything about a specific length, so maybe I should be saying we're talking rifle length rails here.

    Second, your 'source' states carbine rails. I already told you that you were comparing rifle to carbine, and you said you weren't. Now you're trying to say I'm not paying attention because I didn't know you were talking about carbine.

    Third, if the KAC carbine is equal in weight to the Troy rifle, I wonder what the difference between both carbines would be? I looked it up. The Troy carbine is 4oz. http://store.troyind.com/7_MRF_C_Rai...rf-c7bt-00.htm

    So the Troy is still half the weight.

    We're not talking past each other, you're just not thinking before you speak.


    Quote Originally Posted by JonnyVain View Post
    What are the weight differences?

    I have the 12" MRF-R Troy... at 8.75oz
    Quote Originally Posted by JonnyVain View Post
    You're comparing the KAC Carbine rail at 7" to the Troy Rifle rail at 12". The 12" KAC is over a pound.
    Quote Originally Posted by justin_247 View Post
    No, I'm not.
    Quote Originally Posted by justin_247 View Post
    you would see that we're discussing carbine length rail systems here, not rifle length.
    OP asked a question and I was just trying to help him out. You're just confusing the subject.
    Last edited by JonnyVain; 03-06-10 at 15:57.

  9. #19
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    I'm pretty sure KAC makes the Army issue rails we have on our M4's and FWIW the top sections break pretty regularly. Last I checked, out of a sample size of 12 we had three broken top sections (as in what was supposed to be one piece of aluminum was now two). They break just past the delta ring.

  10. #20
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    I had the KAC drop-in rail on my issue M4. It was sturdy and completely reliable.

    Quote Originally Posted by mkmckinley View Post
    I'm pretty sure KAC makes the Army issue rails we have on our M4's and FWIW the top sections break pretty regularly. Last I checked, out of a sample size of 12 we had three broken top sections (as in what was supposed to be one piece of aluminum was now two). They break just past the delta ring.
    KAC makes all the rails for the M4's, M16-A4's, and SAM-R's that we use in the Marine Corps. I've never seen one break or have any trouble.
    Owner/Instructor at Resolute Response
    Assistant Instructor at Protective Shooting Concepts

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