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Thread: Port size for LMT MWS ?

  1. #1
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    Port size for LMT MWS ?

    I have an LMT MWS in 308. Love the gun. It runs hot as hell suppressed. Was thinking about using a Black River Tactical insert to reduce gas port size. I know it's a bit over gassed, but it runs fine both suppressed and I suppressed. Just runs hot.

    For those of you in the know on these ideal gas port sizes, what range do you think we could go to and run both suppressed and unsuppressed ?

    Any feedback appreciated.

    PB
    "Air Force / Policeman / Fireman / Man of God / Friend of mine / R.I.P. Steve Lamy"

  2. #2
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    PB, uncharted territory as far as the forum knowledge base. I do know MWS have a pressed on GB as well as an angled gas-port. I don't think an insert will work, not sure you can even get the gas-block off. I have seen guys chop rifle length gas MWS barrels down to 16/16.5" to help with gassing suppressed. Otherwise an adjustable gas-key or custom barrel are the only other options I can think of.

  3. #3
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    Quote Originally Posted by jerrysimons View Post
    PB, uncharted territory as far as the forum knowledge base. I do know MWS have a pressed on GB as well as an angled gas-port. I don't think an insert will work, not sure you can even get the gas-block off. I have seen guys chop rifle length gas MWS barrels down to 16/16.5" to help with gassing suppressed. Otherwise an adjustable gas-key or custom barrel are the only other options I can think of.

    I did this to my 18" 5R stainless barrel, it made a dramatic difference!
    Last edited by hk_shootr; 06-02-17 at 23:05.
    Proper Planing Prevents Piss Poor Performance.......

  4. #4
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    Pardon the resurrection, but it's germane to my current interests.

    Standard 16" MWS barrel is .076 - the 13.5" factory barrel is .086

    Wanting to chop a 16" to 14/14.5" and suppress it, but not sure if I'm going to have function issues doing so....

  5. #5
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    Is that a mid length gas tube?
    Black River Tactical
    BRT OPTIMUM Barrels - 16" MPR, 14.5" MPC, 11.5" CQB, 9" PDW
    BRT OPTIMUM-S Barrel - 11.5" CQB Suppressor Gas Drive
    BRT OPTIMUM-S Barrel - 11.5" SB Suppressor, 11.5" SBT 25 Deg Tapered Shoulder Suppressor
    BRT Covert Comps 7.62, 5.56, 6X, 9mm
    BRT MarkBlue Gas Tubes - BRT EXT, EXC and PDW Lengths
    BRT EZTUNE Gas Tubes - CAR and MID
    BRT MicroPin Gas Blocks - .750" & .625"
    BRT MicroTUNE Adjustable Gas Blocks
    BRT CustomTUNE Gas Ports

  6. #6
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    Quote Originally Posted by Clint View Post
    Is that a mid length gas tube?
    Yes, mid-length tube on the factory LMT MWS .308 16" barrel. Their 18"+ MWS barrels are rifle length.

  7. #7
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    We're working on a solution for this using straight EZTUNE Gas Tubes.

    Black River Tactical
    BRT OPTIMUM Barrels - 16" MPR, 14.5" MPC, 11.5" CQB, 9" PDW
    BRT OPTIMUM-S Barrel - 11.5" CQB Suppressor Gas Drive
    BRT OPTIMUM-S Barrel - 11.5" SB Suppressor, 11.5" SBT 25 Deg Tapered Shoulder Suppressor
    BRT Covert Comps 7.62, 5.56, 6X, 9mm
    BRT MarkBlue Gas Tubes - BRT EXT, EXC and PDW Lengths
    BRT EZTUNE Gas Tubes - CAR and MID
    BRT MicroPin Gas Blocks - .750" & .625"
    BRT MicroTUNE Adjustable Gas Blocks
    BRT CustomTUNE Gas Ports

  8. #8
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    Quote Originally Posted by Clint View Post
    We're working on a solution for this using straight EZTUNE Gas Tubes.

    When are these going to be available?


    Sent from my iPhone using Tapatalk

  9. #9
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    We can modify customer tubes now and are working on a prototype.

    Quote Originally Posted by lahunter57 View Post
    When are these going to be available?


    Sent from my iPhone using Tapatalk
    Black River Tactical
    BRT OPTIMUM Barrels - 16" MPR, 14.5" MPC, 11.5" CQB, 9" PDW
    BRT OPTIMUM-S Barrel - 11.5" CQB Suppressor Gas Drive
    BRT OPTIMUM-S Barrel - 11.5" SB Suppressor, 11.5" SBT 25 Deg Tapered Shoulder Suppressor
    BRT Covert Comps 7.62, 5.56, 6X, 9mm
    BRT MarkBlue Gas Tubes - BRT EXT, EXC and PDW Lengths
    BRT EZTUNE Gas Tubes - CAR and MID
    BRT MicroPin Gas Blocks - .750" & .625"
    BRT MicroTUNE Adjustable Gas Blocks
    BRT CustomTUNE Gas Ports

  10. #10
    Join Date
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    Location
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    Let us know if you'd like to try one of these out for the MWS.
    Black River Tactical
    BRT OPTIMUM Barrels - 16" MPR, 14.5" MPC, 11.5" CQB, 9" PDW
    BRT OPTIMUM-S Barrel - 11.5" CQB Suppressor Gas Drive
    BRT OPTIMUM-S Barrel - 11.5" SB Suppressor, 11.5" SBT 25 Deg Tapered Shoulder Suppressor
    BRT Covert Comps 7.62, 5.56, 6X, 9mm
    BRT MarkBlue Gas Tubes - BRT EXT, EXC and PDW Lengths
    BRT EZTUNE Gas Tubes - CAR and MID
    BRT MicroPin Gas Blocks - .750" & .625"
    BRT MicroTUNE Adjustable Gas Blocks
    BRT CustomTUNE Gas Ports

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