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  1. 07-08-2015, 21:20 #7
    zimagold
    zimagold is offline
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    May 2014
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    I have three Syrac Gen II gas blocks. 16" Midlegth 556, 16" Midlength 6.8, 8.5" 300BLK. I don't have personal experience with any failures. However, based on the design, I wouldn't be surprised if they failed after a few thousand rounds as mentioned by MarkCO. These are all range toys that I wanted to tune in for specific loads, I'll replace the block if it fails.

    If you want reliability with minimal wear on parts for an SBR, I would get a barrel with an undersized gas port and have it drilled by a competent gunsmith for your preferred load.
    Last edited by zimagold; 07-08-2015 at 22:02.
    Feedback: https://www.ar-15.co/threads/138111-...light=zimagold
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