The Spikes Tactical Calico Jack stripped lower receiver (part no. STLS016) is forged from 7075-T6 aluminum to a low-shelf design with a black hard-coat anodized finish, marked for multi-caliber use on the standard AR-15 platform. This model carries the pirate-themed Calico Jack logo for a distinctive look apart from Spikes Tactical’s standard Spider design. Sold stripped, it ships with no internal fire-control parts installed, so you supply a lower parts kit, buffer, and stock to complete the build.

Key Specifications

• Forged from 7075-T6 aluminum for a durable, American-made receiver.
• Finished in black hard-coat anodizing for long-term durability.
• Built to a low-shelf design for broader parts compatibility.
• Marked for multi-caliber use on the standard AR-15 platform.
• Features the distinctive Calico Jack pirate-themed logo.
• Sold as a stripped lower receiver, requiring a lower parts kit, buffer, and stock to complete.
• Features an integrated trigger guard forged directly into the receiver for added strength.
• Compatible with RDIAS drop-in auto-sear housings and other mil-spec internals.
• Accepts standard .154-inch diameter trigger and hammer pins for mil-spec parts compatibility.

Frequently Asked Questions

What parts do I need to complete this lower? You will need a lower parts kit, buffer, and stock of your choosing, since it ships stripped.

What material is this receiver made from? It is forged from 7075-T6 aluminum with a black hard-coat anodized finish.

What does the Calico Jack design look like? It features a pirate-themed logo machined into the receiver for a distinctive Spikes Tactical look.

Buy the Spikes Tactical Calico Jack Stripped Lower Receiver

Order this Spikes Tactical Calico Jack stripped lower receiver from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and start your build with a distinctive pirate-themed design. Browse our full selection of AR15 lower receivers for more build options.