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jrothWA · January 26, 2010, 10:21 PM

about the 5 o'clock position.
There should be a SN on it that MATCHES the receiver rigth front face SN.

IF not have the headspace checked, as the pre-855,000 shotguns the barrels were individually mated to receiver.
Post-855,000 all barrels (in gauge) interchanged.

January 26, 2010, 10:21 PM	#3
jrothWA Senior Member Join Date: November 11, 2006 Posts: 2,519	Check the barrel bottom,,,, about the 5 o'clock position. There should be a SN on it that MATCHES the receiver rigth front face SN. IF not have the headspace checked, as the pre-855,000 shotguns the barrels were individually mated to receiver. Post-855,000 all barrels (in gauge) interchanged.