Designed for steady, repeatable performance in varied environments, the Strike SI AR10-E-LRPLT AR10 ENHN LOWER RCV *LIMIT PARTS emphasizes functional reliability and straightforward operation. This Builders Kit includes essential parts needed for a build but does not include a pistol grip or mil-spec trigger parts, allowing customization with user-preferred components. Ideal for building long-range rifles, it complements various SI AR Grips and offers freedom to select your own AR trigger group. Strike Industries is known for its innovative solutions and quality enhancements in firearm accessories.