Flaigs used to supply ribbed barrels of German manufacture. If memory serves they advertised them as 'Bohler Stahl' barrels. I bought several from them and they were uniformly good. Magnificent store in the evergreens on the side of the hill as I remember. Made you think of the black forrest even if you had never heard of it. Had a good catalog and I still have some wood working chisels I bought from them in the late 50's. Along with The Original Sight Exchange they were my prime suppliers in the 50's for gunsmith stuff.