This is the "SolidSolid"™ one piece shotgun O/U barrel made of S7 VAC. Made by Brazier, this Karl Lippard Patented Design covers 8 different types of barrels covering the full range of barrels made in the world today. SolidSolid™ barrels can be made for your Fabbri, Holland & Holland, Perazzi, Purdey, Westley Richards or other fine gun "one off" for $10,000.00 each. Barrels for the Trade are discounted at 10 and 100 barrel orders. Other barrels are available in Side by Side, and double rifle with adjustable impact. All ribs and false ribs, are integral....One Off SolidSolid barrels are $10,000. each and MonoSolid barrels like the Monobloc in common use today such as Perazzi's would be $4,000.00 each. We bore all our barrels in-house by CNC using S7 tool steel. We also make Winchester type actions as well.