Excalibur Crossbow Carbon FireBolts 20 in. 6 pk.. Includes front and rear inserts. Factory fletched with 4" vanes. Available in 20" length only. Weight: 265 gr. (without point). Specifications for Excalibur Crossbow Carbon FireBolts: Manufacturer: Excalibur Crossbow Length: 20 in Archery Application: Hunting Package Contents: Excalibur Crossbow Carbon FireBolts Designed to deliver optimum speed and accuracy with high performance recurve crossbows when shooting broadheads. Includes front and rear inserts. Factory fletched with 4 vanes. Available in 20 length only. Weight: 265 gr. (without point).