These EVO-X Lighted CenterPunch Arrows were specifically designed for use with the Havoc RS440 and Siege RS410 crossbow models. Each of the 16-inch arrows are constructed from modulus carbon fiber, is wrapped in an exclusive LAZER-TECH carbon weave, and have been fletched with 2.1” Q2i Fusion-II Vanes. These arrows are also equipped with TenPoint’s Alpha-Nocks, which provide 28% String-To-Nock engagement.