Description Demo B&S BS31372LR-2-0 Challenger II Professional Bb Trumpet Key: Bb Series: Challenger 2 Bore: .459" / 11.66 mm ML bore Bell: 4.803" / 122 mm, #37 one-piece hand-hammered yellow brass, gold brass or sterling silver Valves: 3 top-sprung hand-lapped Monel pistons Water keys: 2 lever-style, forged (main tuning and 3rd valve slide) Features: Standard or reversed lead pipe, long screw stop on 3rd valve slide, thumb saddle for 1st valve slide, quiet felt valve cap in-lays Outfit: Hard wood-shell case, mouthpiece, cleaning cloth Finish: Clear silver-plated The B&S 3137 Challenger II trumpet is the logical step in taking the Challenger Series to the next level for the most ambitious players. With a slightly different lead pipe taper and bell design, the Challenger II has less resistance and allows the player to choose their preference of lead pipe and bell flare combination.








