B&T Industries L.L.C. is proud to offer our Bitter & Twisted Mortar model display. The mortar model is constructed from turned and stamped Stainless Steel and quarter sawn American White Oak.The Mortar Barrel and Pinions are turned from 303 stainless steel bar stock with bored trunnion pockets. The trunnions are pressed into the pockets then welded in place. They rest on a pair of stainless steel bearing plates in the Mortar model Base and is retained by a pair of Stainless Steel Top Straps via two ¼-20 Stainless Steel Button Head cap screws per strap. They pass through the straps then into the side and thread into the Stainless Steel handle found on each Side of the Base. Strength is obtained and secured by steel on steel threads.Proudly designed, engineered, machined and assembled in america