Seekins precision makes a .936 adjustable gas block. Makes it very easy to time your build without buying several buffers. They also make a .750 to fit standard barrels. These are hard to find in stock right now. Search the better online gun shops.
I use this on my varmit rifle builds. Wilson 1/8 bull barrels work just fine with this block. Turn down until you get an action short stroke and the back up one notch. Perfect gas pressure the easy way.
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Last edited by dwmiller; 06-02-2013 at 07:17 PM.