Spikes Tactical Water Boarding Instructor AR-15 Stripped Lower Receiver Multi-Caliber

The Spikes Tactical Water Boarding Instructor is a stripped AR-15 lower receiver intended as the foundation for a custom build. It is machined from 7075-T6 aluminum, a high-strength alloy chosen to balance durability with light weight, and it carries a black hardcoat anodized finish meant to resist wear and corrosion.

The receiver is listed at 12 oz and is described as supporting multi-caliber configurations on the AR-15 platform. The retailer text also describes a low shelf and RDIAS compatibility, along with unique markings that distinguish it from other lowers in the series. Because it is a stripped receiver, it ships without a trigger group, stock, or buffer assembly, which must be sourced separately.

• Platform: AR-15
• Material: 7075-T6 Aluminum
• Finish: Black Hardcoat Anodized
• Color: Black
• Weight: 12 oz
• Caliber: Multi-Caliber
• Type: Stripped lower receiver