G&R Tactical
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Thread: Gas tube problems

  1. #31
    Join Date
    Nov 2010
    Location
    MI
    Posts
    2,706
    Feedback Score
    20 (100%)
    Just like the picture shows.

    Extreme rear end of extension to the gas block shoulder.

    Quote Originally Posted by Yimmy View Post
    So from gas port to extension?
    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

  2. #32
    Join Date
    Sep 2019
    Posts
    16
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    0
    Copy as soon as I'm home I will respond with the length

  3. #33
    Join Date
    Sep 2019
    Posts
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    0
    So I had to measure without calipers but it's about 5 and 7/8 inches

  4. #34
    Join Date
    Aug 2016
    Location
    Alabama
    Posts
    464
    Feedback Score
    1 (100%)
    With an accurately installed gas block and gas tube, the end of the tube should be very close to where this one ends: http://www.ar15barrels.com/gfx/gas-tube.jpg

    https://farm5.static.flickr.com/4014...8b533b31_o.jpg

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