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Thread: DD 16'' carbine gas port .055, options?

  1. #21
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    I am fairly certain that Colt M4's and 6920's have the same port size.

    Quote Originally Posted by Clint View Post
    .0625 is spec for a 14.5" barrel.

    The 16" should need a little less.

    I would drill is out to .0595" and call it good.

    Get an H buffer and a mil spec spring.

    Alternatively, the A5 system is a good solution that should help you run a wide range of ammo power.



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  2. #22
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    They do, though he is right that a smaller port could be used.

    I'm fine with my rifles not running .223.

  3. #23
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    Quote Originally Posted by lunchbox View Post
    Ya was thinking about it.. Are saying from experience with this issue or do you just not like T2?
    I'll reiterate from experience.

    Springco WHITE and an H buffer.
    "That thing looks about as enjoyable as a bowl of exploding dicks." - Magic_Salad0892

    "The body cannot go where the mind has not already been."

  4. #24
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    Quote Originally Posted by Iraqgunz View Post
    I am fairly certain that Colt M4's and 6920's have the same port size.
    Doesnt Canada and SAS use a 16" M4 pretty much? Doesn't seem to affect to much.
    Quote Originally Posted by C4IGrant View Post
    Colt builds War Horses, not show ponies.
    Quote Originally Posted by Iraqgunz View Post
    This is 2012. The world is going to end this December and people are still trying to debate the merits of piece of shit, cost cutting crap AR's. Really?

  5. #25
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    Quote Originally Posted by lunchbox View Post
    Ya was thinking about it.. Are saying from experience with this issue or do you just not like T2?
    Two things:
    (1) The ST-T2 was designed for Spike's rifles that are tuned for that specific buffer... not yours.

    (2) That buffer is way too heavy for the size of the gas port you're running. Try a regular spring and Carbine buffer.

    Quote Originally Posted by Iraqgunz View Post
    The correct size for a carbine port is .0625-.063. I would send it to someone competent to open it to the correct size.
    +1

    Send it back to DD and they'll get it fixed for you.

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