The gun is 2-3/4” chamber. I’m going through some details about the gun in the manual.

The Receiver is the LT20 model K receiver. Where would I find the barrel stamp? According to the “K receiver” it should have a 1.5” style barrel Extension. I believe this is the wrong barrel but I need some help. I think this is the 3.5” barrel extension.

I need some verification from someone who knows. If so I may be looking for a 1.5” barrel.

Thanks for any help.