Excalibur Crossbow Carbon FireBolts w/Illuminated Nocks 20 in 3 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 Carbon bolts designed specifically for Excalibur crossbow to ensure the best possible accuracy while using both fixed and mechanical broadheads. Come equipped with Burt Coyote Lumenok lighted nocks. Available in 20 length only. Weight: 270 gr. (without point).