FITS: S686, 12, 20
FITS: All Beretta shotguns except old blade-style, and others with 2.6x.45 thread pitch
Big Book Catalog, Issue:63, Page:527
Big Book Catalog, Issue:64, Page:545
Big Book Catalog, Issue:65, Page:563
Big Book Catalog, Issue:66, Page:578
Big Book Catalog, Issue:67, Page:585