The Spikes Tactical Spider stripped lower receiver (part no. STLS018) 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 recognizable ST Spider logo along with fire-and-safe selector markings for a clean, classic look. Sold stripped, it ships with no internal fire-control parts installed, so you choose the trigger, safety, and furniture for your 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 recognizable ST Spider logo with fire-and-safe selector markings.
• Sold as a stripped lower receiver, so no internal fire-control parts are installed.
• 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

Does this lower include a trigger or other internal parts? No, it ships stripped, so you supply the fire-control group, buffer tube, and grip of your choice.

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

Is this receiver limited to one caliber? No, it is marked for multi-caliber use on the standard AR-15 platform.

Buy the Spikes Tactical Spider Stripped Lower Receiver, Fire and Safe Markings

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