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Old 01-22-2013, 23:57   #4
Join Date: Sep 2011
Posts: 42
I know you're asking about operation, but, I called KKM prior to ordering this barrel and asked about it working/fitting correctly in a Gen4 G20, and the guy I talked to said there should be no problems, their barrel was made to work in there w/o any type of Gen4 redesign.
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