Seekins Precision SP223 Gen2 Billet AR-15 Lower Receiver

Build your ultimate AR-15 on the strongest foundation available — the Seekins Precision SP223 Gen2 Billet Lower Receiver. Precision CNC machined from solid billet aluminum, this lower far exceeds Mil-Spec requirements and delivers the premium fit, finish, and functionality that serious builders demand.

The SP223 Gen2 is packed with enhanced features you won’t find on standard lower receivers, including the Seekins Precision Enhanced Bolt Catch for a more positive and reliable engagement, a receiver tensioning screw to eliminate upper-to-lower play, an ambidextrous bolt stop assembly for improved ergonomics and versatility, and an oversized trigger guard for comfortable shooting with or without gloves.

Whether you’re putting together a precision rifle, a competition build, or a custom hunting rig, the SP223 Gen2 provides the superior craftsmanship and tight tolerances that make every component perform at its best. It’s not just a lower — it’s the cornerstone of a world-class AR build.

Available online with fast shipping nationwide or in stock at Deep Roots Rifle Co in Eustis, Florida. Stop by our local gun store to see our full selection of Seekins Precision products and get expert advice from our knowledgeable staff — or order online today and experience the Deep Roots difference.