New Archery Products NAP Swingfire Broadheads 100 Grain 3 PackNAP Swingfire Broadheads Crossbow 100 gr. 3 pk. Elevate your archery game with the New Archery Products NAP Swingfire Broadheads. Designed specifically for crossbows, these 100 grain broadheads ensure a seamless flight path that deploys instantly upon contact with your target. With field tested precision at speeds up to 450 fps, you can trust in their pinpoint accuracy for every shot. The Swingfire Broadheads feature four opposing cutting surfaces