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Thread: Syrac Ordnance gas block pinning

  1. #1
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    Syrac Ordnance gas block pinning

    Does anyone know who could or would taper pin one of these blocks to my barrel ? Because of the hard melonite finish on it, places like Adco and Rainier Arms don't really want to mess with doing it.

    http://2.bp.blogspot.com/-FBccIHTI0o...0/Imgp2742.jpg

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    Quote Originally Posted by Biggy View Post
    Does anyone know who could or would taper pin one of these blocks to my barrel ? Because of the hard melonite finish on it, places like Adco and Rainier Arms don't really want to mess with doing it.

    http://2.bp.blogspot.com/-FBccIHTI0o...0/Imgp2742.jpg
    Why would you pin that? Will it be exposed? Or under a rail?

    I installed mine about a week ago, and just drilled some shallow holes where the set screws go and loc-tited the screws in. Since mine is covered by a rail, I forsee no issues with it moving.

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    Quote Originally Posted by Ironman8 View Post
    Why would you pin that? Will it be exposed? Or under a rail?

    I installed mine about a week ago, and just drilled some shallow holes where the set screws go and loc-tited the screws in. Since mine is covered by a rail, I forsee no issues with it moving.

    Because I simply prefer to have the gas blocks on my rifles pinned, even if they are under the rail.

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    Quote Originally Posted by Biggy View Post
    Because I simply prefer to have the gas blocks on my rifles pinned, even if they are under the rail.
    Well...good luck.

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    Quote Originally Posted by Ironman8 View Post
    Why would you pin that? Will it be exposed? Or under a rail?

    I installed mine about a week ago, and just drilled some shallow holes where the set screws go and loc-tited the screws in. Since mine is covered by a rail, I forsee no issues with it moving.
    Look atchu and all the new toys. Interested to hear your thoughts on it!

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    Damn. I'm in the same boat.

    The only other option is to put some divots for the scews to sink into.

    Sent from my SPH-D710 using Tapatalk 2
    "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."

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    Quote Originally Posted by munch520 View Post
    Look atchu and all the new toys. Interested to hear your thoughts on it!
    Haha your day will be here soon

    It definitely works. You can close off the port completely and turn your AR into a single shot or open it up all the way and run with the GP size that your AR came with. I went from pretty harsh recoil (at least for 5.56) and really fast bolt speed with 1:00 ejection to a VERY light/smooth recoil and 3:00 ejection...I think I may be able to tune it down a tad more, but I still want the bolt to lock back reliably.

    I don't know if you read Grant's thread about his tuned SBR, but he tuned the GP to run the bolt reliably, but not lock back, so I'd imagine that his shoots even softer than mine.

    It's definitely a solid piece of equipment.

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    Quote Originally Posted by BufordTJustice View Post
    Damn. I'm in the same boat.

    The only other option is to put some divots for the scews to sink into.

    Sent from my SPH-D710 using Tapatalk 2
    This is what I did.

    As long as your rail covers the GB, you should have no problem as long as you properly install it in the first place.

  9. #9
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    Pappabear went over this topic with White Oak.

    They WON'T do the pinning. They told him.. "why do you want to mess up the barrel harmonics?"

    Depends on the gun's purpose for me. I can see doing it both ways.
    "You people have too much time on your hands." - scottryan

  10. #10
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    Option 1 - find a place that can EDM the hole in the gas block you need.

    Option 2 - contact Syrac Ordinance directly and see if you can buy one with a hole directly from them. They should be able to machine the hole in prior to having the piece carburized.

    Option 3 - blow off the pinning. You said the gas block is under the rail. Make sure the barrel is dimpled fairly deep, get longer set screws that stick out some. Drill them and safety wire them.
    Last edited by EzGoingKev; 12-08-12 at 08:52.

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