Hawke XB1 1.5-5x 32mm Crossbow Scope - XB1 SR - Scopes designed to withstand the rigours of crossbows with reticle systems guaranteed to make you a better shot! 10yd aim points from a 20yd zero out to 100yds. Bracketing of 4 or 8 inches and aim marks measuring 1.5 inches across at the corresponding distances. Speeds from 250 to 425 fps. Nitrogen purged. Shockproof. Waterproof. Fog proof. Hawke No-Fault Lifetime Warranty.