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Thread: DD RIS II and Intermediate Length Gas System

  1. #21
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    Feb 2011
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    Quote Originally Posted by bp7178 View Post
    Sorry, when you said light rail I assume your meant lightweight TRX style not the DD Lite. Brain fart.

    I've owned both the DD RIS II and the Lite, in addition to the TRX. For what it's worth, I like the RIS-II the best so far.
    All is forgiven.

    Thanks for the advice. Looks like the best option is still going to go to my local shop, tell them to stop including RRA bolts with their uppers, and screw around with the rails I'm interested in... if they would only stock KAC, and if only KAC would let them...

    If anyone is interested in the place, here is a link. http://www.parallaxtactical.com/store/

    I want them to do well, and the last time I went there is when I was uneducated about AR's, so I'll see what's changed. They have started a AR based store in Kommifornia, and for that, they have my utmost respect. However, I'll have to see what they say when I ask why they are not using better barrels, better parts, or at least DD or BCM bolts, something they should easily be able to get and are not much more money than RRAs. They could at least buy a MOACKS if it came down to that...

    Sorry to stray of topic. Just wanted to vent that. Hope no one minds.
    Taken from a random Sniper's Hide Post
    It's really hard to judge by the size, but that [critter] looks to be in the class of "Big Mother ****er" and perhaps the family of "Stay the **** Back"

  2. #22
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    Do the 203 hangers have to be removed for a midlength gas block?

  3. #23
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    Intermediate is not the same as mid-length.

    That being said, the M203 hangers have to be removed to clear the gas block on the intermediate (11.5" from receiver). The M203 hangers are just at the rear of the gas block.

    You will have plenty of room with the shorter mid-length gas system (about 9") if you leave the hangers installed, but I see no reason to leave them installed. Unless you have a M203 of course....Something else to become loose.

  4. #24
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    Quote Originally Posted by bp7178 View Post
    Intermediate is not the same as mid-length.

    That being said, the M203 hangers have to be removed to clear the gas block on the intermediate (11.5" from receiver). The M203 hangers are just at the rear of the gas block.

    You will have plenty of room with the shorter mid-length gas system (about 9") if you leave the hangers installed, but I see no reason to leave them installed. Unless you have a M203 of course....Something else to become loose.
    Just coming across this and a little late I guess, but I just installed a RIS II on my mid length gas system. I used my fsb shaved down for the gas block and I had to remove the M203 hangers because they just touched the front of the gas block. I think if I'd gone with a smaller low profile gas block they would have fit with a little room to spare though. Just an FYI for anyone else reading this.

  5. #25
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    May 2009
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    Glad you brought this back to life as I'm seriously considering replacing the URX II on my SR15 with the M4A1 RIS II after getting a mk18 RIS II.

    I reall like the RIS II over just about every other rail on the market.
    Last edited by jonconsiglio; 07-26-11 at 14:57. Reason: spelling
    Proven combat techniques may not be flashy and may require a bit more physical effort on the part of the shooter. Further, they may not win competition matches, but they will help ensure your survival in a shooting or gunfight on the street. ~ Paul Howe

  6. #26
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    Noveske barrels, Vltor upper receivers and DD rails...a few of my favorite things...

    It's amazing how accuratley the DD RIS-II mates up with a Vltor MUR. Just shows how dimensionally perfect both are.

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