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- Nov 10, 2010
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I would check that my gas key is A) properly staked and B) isn't leaking before opening up the gas port.The action is Short stroking , measure the gas port and then open it up
Because it’s too small , like every other budget complete upper on the market
Who made the bolt carrier group? BKings house brand? Swap in a known-good bolt, if you have one. Borrow one if you don't.
I'd also break the rifle in for a hundred rounds with full-boat 5.56 loads, just to carbon up the tolerances in the gas block a bit.
If it is still not cycling with a known good bolt after a hundred rounds of 5.56 XM193 I'd talk with BKings--he'll make it right.
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