The Gyre Mod from Avid Lyfe is a hard hitting, competition mechanical 18650 mod. The Gyre Mod is precision machined with state-of-the-art CNC machines, made out of aluminum. Each Gyre Mech Mod is meticulously inspected and hand de-burred to ensure durability, beauty and overall premium functionality. Each Gyre Competition Mod goes through a rigorous inspection before leaving our facility. Avid Lyfe products are MADE IN THE USA and backed by a limited lifetime warranty!