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rep1954 · February 9, 2013, 02:07 PM

I'm going to be doing a pin and weld job on a 11 1/2" barrel and a 5 1/2" flash hider for the first time and need to know what diameter I should use for the pin and how deep must it enter the barrel? Is a high speed or cobalt pin okay for this or should I use something else? Should a crush ring be used?

February 9, 2013, 02:07 PM	#1
rep1954 Senior Member Join Date: July 5, 2009 Location: Mid Western Michigan Posts: 1,187	What Diameter and How Deep? I'm going to be doing a pin and weld job on a 11 1/2" barrel and a 5 1/2" flash hider for the first time and need to know what diameter I should use for the pin and how deep must it enter the barrel? Is a high speed or cobalt pin okay for this or should I use something else? Should a crush ring be used?