Product DescriptionThe Spike&';s Enhanced Lower Parts Kit is built for AR-platform users who want maximum durability and long-term reliability from their rifle components. At its core is the ST Battle Trigger, a single-stage Mil-Spec trigger group with a rounded hammer and disconnector that are Nickel Boron plated to deliver a smooth, crisp pull that continues to break in with use. To help prevent pin walk and reduce long-term wear on receiver pin holes, this kit includes KNS Gen II Mod II Anti-Rotation pins. Additional upgrades include an ambidextrous safety selector, an ST billet trigger guard with set screw, and an Ergo grip featuring the Spike&';s Spider logo. The kit rounds out the build with Mil-Spec controls and small parts (bolt catch, magazine catch/button, detents, plungers, pins, and springs), plus quality spiral roll pins and mounting hardware. Made in the USA.Product Highlights Enhanced AR-15 lower parts kit featuring the ST Battle single-stage Mil-Spec trigger group Nickel Boron plated trigger components for a smoother, crisper trigger pull KNS Gen II Mod II Anti-Rotation pins help prevent pin walk and reduce long-term receiver wear Includes ambidextrous safety selector, billet trigger guard with set screw, and Ergo grip Complete set of Mil-Spec lower controls and small parts plus spiral roll pins and grip hardware Specs Brand: Spikes Manufacturer Part Number: SLPK301 UPC: 855319005440 Platform/Fit: AR platform (AR-15) Color/Finish: Black Trigger: ST Battle, single-stage Mil-Spec; rounded hammer and disconnector Coating: Nickel Boron plated trigger components Included: KNS Gen II Mod II Anti-Rotation pins; ambidextrous safety selector; ST billet trigger guard with set screw; Ergo grip; Mil-Spec bolt catch, magazine catch and button; Mil-Spec detents, plungers, pins, and springs; spiral roll pins; 1/4" Allen screw and washer for grip Weight: 8.50 oz Country of Manufacture: USA Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.