Product DescriptionKeep your AR-platform fire control group secure with the Armaspec Anti-Walk Trigger/Hammer Pin Set. Built from durable stainless steel with precise manufacturing, these anti-walk pins are designed to help prevent your hammer and trigger pins from shifting or walking out during use. This kit includes the hardware and hex keys needed for installation, making it a dependable upgrade for maintenance, hard use, and long-term reliability.Product Highlights Anti-walk design helps keep AR trigger and hammer pins from backing out under use Stainless steel construction for durability and corrosion resistance Standard 0.154-inch pin size for common AR/MSR lowers Includes (2) pins, (2) screws, and (2) hex keys for convenient install Made in the USA (per distributor listing)Specs Brand: Armaspec Manufacturer Part Number: ARM136-SS UPC: 810048491162 Material: Stainless Steel Pin Size: 0.154 in (standard) Compatibility (as listed): AR 5.56/.223 and AR 7.62/.308 platforms using 0.154 in pins Included: (2) anti-walk pins, (2) screws, (2) hex keys Country of Origin: USADisclaimer: 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.