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Old February 2, 2013, 02:25 PM   #7
Senior Member
Join Date: November 2, 2007
Location: Northern Orygun
Posts: 4,875
The pinned are the strongest but a pita to R&R. The set screw type used with dimples in the barrel hold there position very well. Another plus of using set screw type is it pulls the top half of the gas block down on the barrel making a better seal around the gas port.
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