High strength aluminum halfouts from the folks at Victory Archery, these were designed to not only add FOC to your arrow build, but also to strengthen the front of your shaft to increase resilience and protect from fracturing and impact. The Taper Lock machining technology ensures extra strength and concentricity. Fits Victory VAP .166" shafts. Victory Archery .166 Dia. Gray L Shok TL Insert 12pk ACISHOKVL