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Thread: Syrac Ordnance Adjustable Low Pro Gas Block

  1. #11
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    Quote Originally Posted by Ironman8 View Post
    Hmmm not so sure I like that fact there...do you see it as a negative? How well does the detent lock work? Any worries?

    Also, when you screw the adjustment screw all the way into the gas block, does that "shut off" the flow of gas basically turning the rifle into a single shot? Then you adjust the flow of gas by unscrewing the screw, correct?
    It's the best solution if you want a low profile adjustable gas block that will not move without your intervention. The way it works is pretty ingenious. I wouldn't worry about it if you plan on getting one. The detent is pretty strong and takes a good amount of force to press so it will not move on its own.

    Yes when you screw it all the way in it shuts off the gas and turns the rifle into a single shot. I have tested it and it works.

    The set screw is pretty long so you have a good range of adjustability before it comes out. I wouldn't hesitate to buy another one for my other suppressed rifles.

  2. #12
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    I'm interested in going the Syrac route as well... Just saw that they are building a clamp on version as well.

    Have you had time to put any more rounds through this yet?

    I'd like to run this on my 11.5 with URX II midlength and 51T Brake.

    Think there will be enough clearance to adjust the screw with the provided allen key?

  3. #13
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    I just ordered one of these units myself, boys.

    If I can get a loaner Full Auto Lower, I'll make some sweet gun porn and get footage of the weapon at different settings.
    "You people have too much time on your hands." - scottryan

  4. #14
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    I think you'll love the Syrac blocks. Once you have adjustable gas, a whole world of opportunity opens up - especially rock solid adj. gas.

    I've had 3 running great for 6mo or so. Once dialed in fully for reliability, some rifle configs are more/less noticeable. I use all Noveske barrels, so they've got the gas ports pretty dialed from the factory, but on my 308 and my 10.5, I was able to drop the gas down some more, use stronger springs to keep the action cycling fast enough etc. I have not used them for suppressors yet, but they are not exactly a "quick flip" like the switchblock is. Pros n cons. Switchblock is very fast and fool proof, but may not be perfectly dialed in on any particular setup. The Syrac takes some concentration, daylight and two steady hands to make an adjustment.

  5. #15
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    Originally Posted By Zestar:
    With my block on, and screwed all the way in, it does not completely stop the flow of gas. It is not enough to cycle the action unsuppressed, but with suppressor on, I am getting more gas than I want. With suppressor off, 6 clicks from bottom gives me the right amount of gas. Is this normal? I was expecting I'd need to back it out quite a ways. It is on an 18 inch 6.5 Grendel, with mid-length gas system.

    SYRAC ORDNANCE :
    I have recently reduced the gas hole size in the gas block that should help you obtain the results you are looking for. Email admin@syracordnance.com for an RMA if you want to swap your block for the new one.

    I plan on trying one of these also but the ones with the smaller gas hole were not back from the melonite process yet (last week).

  6. #16
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    This gas adjustment thing has become huge for me. I've recently corrected guns that I've owned for YEARS.

    I'm just astonished at how much nicer the weapon runs when the gas is set right.... I mean... I have old aftermarket uppers that always have run reliably...but still over gassed and just way too bouncy to shoot fast.

    I have this piece of shit bushmaster 14.5 that's running like a Town Car now.
    "You people have too much time on your hands." - scottryan

  7. #17
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    Quote Originally Posted by markm View Post
    This gas adjustment thing has become huge for me. I've recently corrected guns that I've owned for YEARS.

    I'm just astonished at how much nicer the weapon runs when the gas is set right.... I mean... I have old aftermarket uppers that always have run reliably...but still over gassed and just way too bouncy to shoot fast.

    I have this piece of shit bushmaster 14.5 that's running like a Town Car now.
    Yep. I think the carbine-length 14.5/16s out there are the most noticeable with adj. gas. So many are overgassed and kick like mules. One of my first ARs I bought was a carbine gas Bushy back in '97 or so.. Lovely, reliable, heavy barreled tack driver. I sold it years ago, mainly due to being a Noveske snob and it was horribly overgassed - to the point of other shooters commenting on its kick. I wish so bad I could get that thing back now and throw a Syrac on it. I loved that rifle.
    Last edited by Brahmzy; 12-31-12 at 10:43.

  8. #18
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    I got my Syrac yesterday. Pretty good looking system. The detent system seems solid.
    "You people have too much time on your hands." - scottryan

  9. #19
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    Can this block close the gas all the way off if one wanted to do so? I did not see that mentioned on Syrac's site.

  10. #20
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    Quote Originally Posted by Sam Sr View Post
    Can this block close the gas all the way off if one wanted to do so? I did not see that mentioned on Syrac's site.
    I read something about the first runs not being able to fully stop all of the gas, but that in December a small change was being made and any new ones will block 100% of the gas.
    Don't ask about where to get new ones and how to ID them - I don't know. Best talk to Jason, the owner. Good luck getting a response though.
    Please post what you find.

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