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jmr40 · November 1, 2011, 12:51 PM

The 670 has a better extractor, bolts that don't fall off and it won't fire unless you pull the trigger. Other than that they are very comparable.

November 1, 2011, 12:51 PM	#3
jmr40 Senior Member Join Date: June 15, 2008 Location: Georgia Posts: 10,973	The 670 has a better extractor, bolts that don't fall off and it won't fire unless you pull the trigger. Other than that they are very comparable.