Product DescriptionThe Spikes Spider Stripped Lower Receiver is an American-made AR-15 lower built to high manufacturing standards for dependable fit and function. Constructed from 7075-T6 forged aluminum, this multi-caliber stripped lower features a MIL-A-8625F Type III Class 2 hard coat anodized black finish for long-lasting durability and corrosion resistance. The Spider model includes the distinctive ST Spider logo on the left side of the magwell, along with bullet pictogram selector markings for a unique visual signature. Designed as a low shelf receiver and noted as RDIAS compatible in the source data, this lower is a strong foundation for a custom rifle build. Please note that a lower parts kit, buffer, and stock are required to complete the assembly.Product Highlights Built from durable 7075-T6 forged aluminum for strength in AR-15 platform builds Multi-caliber stripped lower receiver offers flexibility for compatible AR-15 configurations MIL-A-8625F Type III Class 2 hard coat anodized black finish helps resist wear and corrosion Features the distinctive ST Spider magwell logo with bullet pictogram selector markings Low shelf design with RDIAS compatibility noted in the source data Specs Product Type: Stripped Lower Receiver Platform: AR-15 Model: Spider Manufacturer Part Number: STLS019 UPC: 855319005044 Brand: Spikes Caliber: Multi-Caliber Material: 7075-T6 Forged Aluminum Finish: MIL-A-8625F Type III Class 2 Hard Coat Anodized Color: Black Design Details: ST Spider logo on left side of magwell Selector Markings: Bullet pictograms Receiver Style: Low shelf Compatibility: RDIAS compatible Country of Manufacture: USA Assembly Note: Requires lower parts kit, buffer, and stock to complete 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.