Updated the problem in the OP with pics.
looks like the gas block moving forward was the problem. Very wierd that the block and barrled were tapped for a pin but one was never put in the gas block. Just two small tention screws under the block.
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Updated the problem in the OP with pics.
looks like the gas block moving forward was the problem. Very wierd that the block and barrled were tapped for a pin but one was never put in the gas block. Just two small tention screws under the block.
So Smith forgot to pin the gas block?