Spike’s Spider Stripped Lower Receiver – Multi (Black)

Spikes STLS019 “Spider” — Stripped Lower Receiver — 7075-T6 Aluminum, Black Anodized

Build-ready platform with billet-style markings — strong, clean, and custom-ready.

The Spikes STLS019 Spider stripped lower is a precision-machined AR-15 lower receiver finished in black anodize and engraved with Spider billet-style markings. Machined from 7075-T6 aluminum for strength and lightweight handling, this stripped lower provides a durable, Mil-Spec-compatible foundation for custom .223/5.56 (multi-caliber) builds. It ships as a bare receiver blank ready to accept standard lower parts kits, stocks, and uppers so builders and gunsmiths can create a tailored rifle with a distinct Spike’s aesthetic.

Key Features

• Type: Stripped lower receiver — lower only, no parts kit included.

• Material: 7075-T6 aircraft-grade aluminum for high strength-to-weight performance.

• Finish: Hard black anodized finish for corrosion resistance and a tactical low-gloss look.

• Markings: Billet/Spider-style aesthetic engraving for a distinctive, upscale appearance.

• Caliber Platform: Multi-caliber (.223 Rem / 5.56 NATO geometry) — final caliber determined by chosen upper assembly.

• Compatibility: Mil-Spec dimensions for broad compatibility with standard AR-15 parts kits, buttstocks, and uppers.

• Machining: Precision CNC work for consistent fitment and clean lines — ideal for custom builds.

• Packaging: Shipped as a stripped lower receiver only; does not include trigger group, stock, buffer, or upper components.

Why It Stands Out

The STLS019 pairs Spike’s signature billet-style Spider markings with aircraft-grade 7075-T6 construction and a protective anodized finish—giving builders a premium-looking, rock-solid starting point for custom AR projects. It’s chosen when durability, clean machining, and a distinctive receiver aesthetic matter as much as fit-and-function.

Perfect For

• Custom AR builders assembling a personalized .223/5.56 rifle

• Gunsmiths and armorers wanting a billet-marked lower for high-end builds

• Enthusiasts who value a premium finish and distinctive receiver styling

• Shops stocking attractive, Mil-Spec-compatible lowers for kit sales and builds