MISSION CROSSBOW BOLTS 19 IN. 250 GR. 3 PK. The 19" arrows are .001 straightness tolerance for unmatched accuracy and have been specifically optimized to be the best performing arrow for Mission Crossbows. They are weight matched and utilize brass inserts, half-moon aluminum nocks, and 100 percent carbon shafts. This is the strongest and most accurate arrow for Mission Crossbows. These bolts are engineered and safe for Sub-1 series crossbows.