Sting Micro-Diameter Crossbow Bolts Carbon Arrows with Field Tips, Half-Moon Nocks, Penetrator Inserts for Hunting Broadheads OD 6.0mm

Micro-diameter shaft with an outer diameter of 6.0mm/0.236' and an inner diameter of 4.2mm/0.166'. Offers improved penetration. Minimized wind drift. Works with standard tips and broadheads. Suitable for hunting and practice use. Delivers high speed. Allows for bolt weight adjustment. Weight when equipped with the aluminum penetrator insert is 250 grains