Meet Pereira 3D’s first conical bore barrel! It features a closer entrance bore and wider exit bore (suitable for both Bb and A clarinets), which creates more even resistance across the instrument’s range and improves larger intervals. The R17 model was the beginning of the Next Generation lineup as the first barrel to implement a 3D printed Bronze metal ring. The addition of the metal on the lower portion of the barrel increases core and depth in the sound as a result of the added density. Our barrels now feature an improved infill pattern to increase the body’s density and ultimately make a better-sounding product!