IBO Speed Brace Height Let Off Mass Weight Axle to Axle Draw Weight Draw Length Kinetic Energy up to 325 FPS 7” 80% 4.4 lbs. 36 1/4” 50# 60# 70# 24.5 - 28.5” / 27.5 - 31.5” 82.11   The Viper XL is rock steady; you can feel the accuracy before releasing the arrow. Exceptional stability and zero hand shock/vibration make this bow extremely accurate and easy to shoot. Choose the Viper XL choose a winner!   * View Available APA Target Colors * View Camo Pattern Swatch