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Thread: 10.3/10.5 inch barrels

  1. #41
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    I've tried every 10.5" inch barrel and have gone back to 11.5"

    I don't like the reliability issues with 10.5" or the excessive wear it puts on a silencer.

    There is a reason why Noveske started making 11.5" barrels.

    There is a reason why 11.5" has been the Colt and industry standard for a short AR15 for atleast 4 decades.
    Last edited by scottryan; 10-12-10 at 17:58.
    "Not every thing on Earth requires an aftermarket upgrade." demigod/markm

  2. #42
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    Quote Originally Posted by scottryan View Post
    I've tried every 10.5" inch barrel and have gone back to 11.5"

    I don't like the reliability issues with 10.5" or the excessive wear it puts on a silencer.

    There is a reason why Noveske started making 11.5" barrels.

    There is a reason why 11.5" has been the Colt and industry standard for a short AR15 for atleast 4 decades.
    I know. Imagine my surprise when I emailed SAW to ask if they carried the 6933 and they said:

    We do not carry 6933's. We think the Colt MK18 CQBR is a better upper/rifle.
    They know their stuff like nobody's business, so who am I to second guess that?

  3. #43
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    Quote Originally Posted by RAM Engineer View Post



    They know their stuff like nobody's business, so who am I to second guess that?

    I would say Colt knows their stuff like nobody's business.

    SAW is not Colt. And I have never seen proof the 10.5" currently offered by SAW are actually real MK18 barrels or SAW cut downs from Colt M4 barrels. They used to be SAW cut downs. I don't know what they use now, but why do you think they are pushing the 10.5" over the 6933? Maybe because it is their own product?

    It is proven fact that 10.5" shortens the life of a silencer dramatically. No matter how much experience someone has, doesn't change this fact.

    I quit running a 10.5" because I don't want my silencer eaten up after 5000 rounds.
    Last edited by scottryan; 10-12-10 at 21:18.
    "Not every thing on Earth requires an aftermarket upgrade." demigod/markm

  4. #44
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    Interesting.

    I have just at 14K rounds through my 51 tooth AAC-M4 2000 Mod 07. Most of that was through a LMT 10.5" barrel (cutdown from a 14.5" LMT barrel) and now a Colt 10.5" (cutdown from a 14.5" SOCOM barrel).

    This suppressor has been 100% trouble free.

    Last edited by Robb Jensen; 10-12-10 at 21:31.
    Chief Armorer for Elite Shooting Sports in Manassas VA
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  5. #45
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    Quote Originally Posted by scottryan View Post
    I would say Colt knows their stuff like nobody's business.

    SAW is not Colt. And I have never seen proof the 10.5" currently offered by SAW are actually real MK18 barrels or SAW cut downs from Colt M4 barrels. They used to be SAW cut downs. I don't know what they use now, but why do you think they are pushing the 10.5" over the 6933? Maybe because it is their own product?

    It is proven fact that 10.5" shortens the life of a silencer dramatically. No matter how much experience someone has, doesn't change this fact.

    I quit running a 10.5" because I don't want my silencer eaten up after 5000 rounds.
    Thanks for the info. I was not aware that the 10.3"s they sell are (or were) cut down M4 barrels.

    Who makes the issue Mk18 barrels? They were Colt M4 barrels cut-down by NSWC Crane originally, weren't they?

  6. #46
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    Quote Originally Posted by gotm4 View Post
    Interesting.

    I have just at 14K rounds through my 51 tooth AAC-M4 2000 Mod 07. Most of that was through a LMT 10.5" barrel (cutdown from a 14.5" LMT barrel) and now a Colt 10.5" (cutdown from a 14.5" SOCOM barrel).

    This suppressor has been 100% trouble free.
    Which muzzle device are you using?

  7. #47
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    Quote Originally Posted by RAM Engineer View Post
    Which muzzle device are you using?
    First 12K or so was the Blackout FH'er, now it's the Blackout Brake.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  8. #48
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    I just can't see that extra 1" making a huge difference in suppressor life.

    I plan on the M4-2000 route and like Robb I have the 51T brake to soak up some of the erosion.

  9. #49
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    I used a Noveske 10.5" SS barrel for my build earlier this year. I am just about at 1000 rounds with no malfunctions suppressed and unsuppressed. I used a standard carbine spring and an H buffer. It is also very accurate. I will most likely add the Switchblock at some time. Easily my favorite gun.



    Jk
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  10. #50
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    Quote Originally Posted by RAM Engineer View Post
    Thanks for the info. I was not aware that the 10.3"s they sell are (or were) cut down M4 barrels.

    Who makes the issue Mk18 barrels? They were Colt M4 barrels cut-down by NSWC Crane originally, weren't they?

    They were originally Colt cut downs by Crane and now they are mostly factory Colt 10.3" barrels.

    Factory Colt 10.3" barrels cost big $$ on the commercial market, probably less than 20 of these out there.

    There is some disconnect between what SAW sells, what actually is a real MK18 barrel, and what people think is a real MK18 barrel, that hasn't been fully sorted out.
    Last edited by scottryan; 10-13-10 at 11:29.
    "Not every thing on Earth requires an aftermarket upgrade." demigod/markm

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