I have a Jap 20ga barrel in regular use on an FN made 20ga A-5, near the end of the production run.

There are some interchange problems with real early guns, due to a slot that was added in the barrel extention as I recall.

Also have a 1956 standard weight 12ga with a Jap trigger that was a drop-in fit.


"The price of good shotgunnery is constant practice" - Fred Kimble