Designed for steady, repeatable performance in varied environments, the Spikes Tactical COMPLETE AR-15 LOWER RECEIVER W/BUTTSTOCK emphasizes functional reliability and straightforward operation. This complete lower receiver is engineered with a ruggedized hardcoat anodized finish, stainless steel trigger, and a six-position mil-spec buffer tube, ensuring smooth handling and consistent mechanical behavior. Ideal for range training and recreational shooting, this lower receiver is compatible with various uppers including .223 and 5.56 rounds. Spikes Tactical is renowned for its quality construction and ongoing product development.