Spike's Tactical STLS023 PHU Skull Pipe Hitters Union Stripped Lower Receiver - Black Forge a one-of-a-kind custom AR-15 with the Spike's Tactical STLS023 PHU Skull Stripped Lower Receiver. This premium multi-caliber lower showcases the bold Pipe Hitters Union skull logo, precision-machined from 7075-T6 forged aluminum with a durable black Type III hard coat anodized finish. Built for reliability and designed to turn heads, it's the ideal foundation for high-performance 5.56, .223, .300 BLK, and other AR-platform builds. Key Features & Benefits Iconic PHU Skull Logo: Striking Pipe Hitters Union skull engraving that gives your rifle a distinctive, aggressive tactical appearance. 7075-T6 Forged Aluminum Construction: Superior strength, lightweight design, and enhanced durability over cast lowers. Multi-Caliber Ready: Compatible with 5.56/.223, .300 BLK, 9mm, and a wide range of AR-15 uppers and components. Mil-Spec Precision: Low shelf design, RDIAS compatible, with tight machining tolerances for smooth assembly and flawless function. Type III Hard Coat Anodized Finish: Black finish delivers excellent corrosion resistance and long-lasting wear protection. Specifications Manufacturer: Spike's Tactical Model: STLS023 PHU Skull Pipe Hitters Union Stripped Lower Material: 7075-T6 Forged Aluminum Finish: Black MIL-A-8625F Type III Class 2 Hard Coat Anodized Caliber: Multi-Caliber (5.56/.223, .300 BLK, etc.) Weight: Approximately 8.6 oz Design: Low Shelf, RDIAS Compatible Markings: Pipe Hitters Union Skull Logo SKU: STLS023 Ideal Uses Perfect for building a suppressed .300 BLK SBR, a reliable home defense carbine, a precision rifle, or a hard-use plinker. The PHU Skull lower pairs exceptionally well with quality uppers, handguards, and subsonic ammo (like Winchester SUP22LR) from Battlehawk Armory to create a personalized, high-performing firearm that reflects your style and needs. Ready to start your elite build? Add the Spike's Tactical STLS023 PHU Skull Stripped Lower Receiver to your cart at Battlehawk Armory today and lay the foundation for an outstanding custom AR-15. Limited stock - secure yours now!