The rugged Muzzle-Brite is constructed entirely of metal and will fit virtually any muzzleloader. Tri-Dot, in -line aiming system features contrasting front and rear fiber colors and full adjustability for both windage and elevation. FEATURES: ? Universal mounting system for in-line muzzleloaders. ? CNC machined. ? Full windage & elevation adjustment. ? Mounting hardware included. ? Front diameter is .040"; rear diameter is .029". ? Endorsed by the Rocky Mountain Elk Foundation.