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Thread: 11.5” Colt FBI Barrel Ejection

  1. #41
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    Has anyone done a back to back comparison between the colt gold spring and the two sprinco options?
    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. #42
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    Quote Originally Posted by WS6 View Post
    I'd go with a Colt "gold" spring, or one of SAW's green springs.
    What is a SAW green spring?
    Big brother is watching...and listening.

  3. #43
    Join Date
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    http://www.specializedarmament.com/a...g-assembly-sa/

    I think it is a reference to this.

  4. #44
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    Quote Originally Posted by 56cbr600rr View Post
    How it turn out?
    Great. With the H2 buffer and Colt spring it ejects m193 at 3 o’clock and .223 at 4. Brown Bear will not cycle. I want to see if a H1 buffer would allow for cheap Russian ammo to be used if needed. May have gone .070 in hindsight.
    "A flute without holes, is not a flute. A donut without a hole, is a Danish." - Ty Webb

  5. #45
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    Dropping down in buffer weight speeds up the cycle and allows proper operation with lower power ammo.

    Quote Originally Posted by OldState View Post
    Great. With the H2 buffer and Colt spring it ejects m193 at 3 o’clock and .223 at 4. Brown Bear will not cycle. I want to see if a H1 buffer would allow for cheap Russian ammo to be used if needed. May have gone .070 in hindsight.
    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. #46
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    Quote Originally Posted by prepare View Post
    Sprinco has a enhanced and a extra power, which one is recommended? with or without the insert?
    With insert
    INSIDE PLAN OF BOX
    1. ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
    2. MATCH SCRATCHES ON MATCH-BOX
    3. MATCH LIGHTS FUSE TO TNT
    4. BOOM!
    5. HA-HA!!

    -WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"

    http://i115.photobucket.com/albums/n289/SgtSongDog/AR%20Carbine/DSC_0114.jpg
    I am American

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