Spike's Calico Jack | AR-15 | Stripped Lower Receiver

The Spike's Tactical Calico Jack (MPN: STLS016) is one of the most iconic "themed" lowers in the AR-15 world. Combining military-grade durability with a bold, pirate-themed aesthetic, this stripped lower receiver is the perfect foundation for a custom build that stands out from the standard "black rifle" crowd. Precision-machined from 7075-T6 forged aluminum, it delivers the rock-solid reliability that Spike’s Tactical is famous for.

Custom Calico Jack Branding & Details

What defines the STLS016 is the custom Calico Jack "Skull & Crossbones" logo deeply engraved on the magwell. To complete the theme, the safety selector markings are uniquely designated:

• "Parley" (Safe)

• "Plunder" (Semi)

• "Pillage" (Auto/Burst) (Note: This is a semi-auto receiver; the "Pillage" marking is for aesthetic/themed purposes only).

Mil-Spec Precision & Finish

Despite its custom look, the Calico Jack lower is built to strict Mil-Spec requirements. It is CNC-machined from a 7075-T6 forging and finished with a Type III Class 2 hard-coat anodized matte black coating. This ensures that every aftermarket parts kit, trigger, and upper receiver will fit with seamless precision. Whether you are building a lightweight range carbine or a rugged defensive pistol, this lower provides the structural integrity required for a lifetime of use.

Key Features & Benefits

• Themed Engravings: Features the Calico Jack logo and "Parley/Plunder/Pillage" selector markings.

• 7075-T6 Forged Aluminum: Offers superior strength-to-weight ratio compared to cast or billet alternatives.

• MIL-A-8625F Type III Anodizing: Provides a hardened, scratch-resistant surface for maximum durability.

• High-Quality Machining: Features a flared magwell for faster, more intuitive reloads.

• Universal Compatibility: Fits all standard Mil-Spec AR-15 components and upper receivers.