Upgrade your AR-15 build with the Guntec AR-15 Complete Lower Parts Kit With Ergonomic Polymer Pistol Grip. This comprehensive kit delivers all the essential components needed to assemble or refresh a standard lower receiver, paired with a thoughtfully designed polymer grip that enhances shooter comfort and control during extended range sessions or tactical use. Key Features Complete mil-spec lower parts kit - Includes trigger group, hammer, disconnector, safety selector, bolt catch, magazine catch, takedown and pivot pins, detents, springs, trigger guard, and more for a fully functional assembly. Ergonomic polymer pistol grip - Features a textured surface, backstrap, and finger grooves for a secure, comfortable hold that reduces hand fatigue and improves accuracy. Integrated storage compartment - The grip includes a convenient compartment for small items like batteries or tools, adding practical utility without extra bulk. US-made mil-spec construction - Precision-engineered components ensure reliable fit and function with standard AR-15 lower receivers in .223 Rem, 5.56x45mm, and .300 Blackout platforms. Benefits for Builders and Shooters Whether you're completing a custom build or replacing worn parts on an existing rifle, this kit eliminates the hassle of sourcing individual components. The ergonomic grip addresses common pain points like slippery or uncomfortable standard grips, providing better control and a professional feel that elevates your firearm's handling. Mil-spec tolerances guarantee compatibility and dependable performance in demanding conditions. Specifications Weight: 8 oz Dimensions: 6 in (L) x 4 in (W) x 2 in (H) Material: Steel internal components with polymer ergonomic pistol grip Finish: Matte black Compatibility: Standard AR-15 lower receivers Origin: Made in the USA Why Choose This Guntec Kit Guntec USA has built a reputation for delivering quality AR accessories at accessible prices. This complete package combines functionality with ergonomic improvements, making it an ideal choice for hobbyists, competitive shooters, and those seeking a reliable foundation for their next project. All parts are designed to meet mil-spec standards for seamless integration and long-term durability. Ready to complete your AR-15 lower receiver? Add the Guntec Complete Lower Parts Kit to your cart today and experience the difference a purpose-built ergonomic grip can make.