The Spikes Tactical Stripped Lower Receiver (part no. STLS145-BL) carries the Thin Blue Line marking, a graphic honoring law enforcement that Spikes Tactical offers across select stripped lower receivers. It is chambered for .223 Remington/5.56 NATO builds and machined to Spikes’ standard semi-automatic-only civilian specification. This lower ships stripped, so builders can select their own lower parts kit, buffer, and stock to complete the build.

Key Specifications

• Features the Thin Blue Line marking honoring law enforcement.
• Chambered for .223 Remington/5.56 NATO AR-15 pattern uppers.
• Built to Semi-Auto AR-15 pattern specifications.
• Ships as a stripped receiver, ready for your lower parts kit and stock.
• Forged from 7075-T6 aluminum for a strong, mil-spec receiver.
• Finished with a MIL-A-8625F Type III Class 2 hard coat anodized black finish.
• Weighs approximately 8.6 ounces bare.

Frequently Asked Questions

What is the Thin Blue Line marking? It is a graphic Spikes Tactical offers on select stripped lowers to honor law enforcement.

Does this lower ship complete? No, it ships stripped and requires a lower parts kit, buffer, and stock to finish the build.

Buy the Spikes Tactical Thin Blue Line Stripped Lower Receiver

Build on a proven Spikes Tactical receiver. Browse more AR-15 lower receivers and order from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.