Compact by design, but colossal with it’s features, the AX405 crossbow is best characterized as; Performance. Optimized. The most efficient part of the AX405 is the 220 lb. split limbs to deliver bolt speed in excess of 400 FPS. Features:Speed: 405 FPSWeight: 9.5 lbs.Power Stroke: 13.125″Axle to Axle: 10.125″Limb Weight: 210 lbs.