Spike’s Tactical Crusader AR-15 Pistol Lower Build Kit, Heavy-Duty Pistol Buffer Tube

Spike's Tactical Crusader AR-15 Pistol Lower Build Kit with Heavy-Duty Pistol Buffer Tube

This is a complete lower build kit designed specifically for AR-15 pistol configurations. It combines Spike's Tactical Crusader stripped lower receiver with a full complement of mil-spec lower parts, a heavy-duty pistol buffer tube, buffer, spring, and end plate. Everything you need to complete a lower receiver is included except the serialized lower itself.

Key Features

• Spike's Tactical Crusader STLS022 lower receiver with Crusader Shield engraving and multi-caliber markings
• Davidson Defense 31-piece mil-spec lower parts kit with complete fire control group
• Aircraft-grade aluminum pistol buffer tube with Type II anodized finish
• Standard carbine recoil buffer and spring for reliable cycling
• Mil-spec A2 pistol grip and all hardware included
• Hard coat anodized aluminum construction throughout
• Compatible with standard AR-15 pattern magazines and components

Perfect For

• Builders creating their first AR-15 pistol platform
• Users wanting a reliable, mil-spec lower assembly without custom features
• Shooters who prefer Spike's Tactical quality and distinctive lower receiver markings
• Pistol builds requiring a complete, ready-to-assemble lower receiver kit

Crusader Lower Receiver Design

The Spike's Tactical Crusader lower features the iconic Crusader Shield engraving and distinctive selector markings reading "PAX PACIS," "BELLUM," and "DEUS VULT" on one side with English translations on the opposite side. The multi-caliber marking ensures compatibility across various AR-15 configurations. Hard coat anodized aluminum construction provides durability and corrosion resistance in a professional-grade platform.

Complete Lower Parts Kit

This kit includes a Davidson Defense 31-piece mil-spec lower parts kit with all components needed for a functioning lower receiver. The fire control group features a standard curved mil-spec trigger and hammer, complete disconnector assembly, safety selector, magazine catch assembly, bolt catch assembly, and all required pins, springs, and detents. The included mil-spec A2 pistol grip comes with hardware ready for installation.

Pistol Buffer System

The Davidson Defense pistol receiver extension features aircraft-grade aluminum construction with precision machining and Type II anodized black finish. At 7.375 inches long with a 1.24-inch outer diameter, it accommodates standard carbine and pistol weight buffers. The kit includes a standard 3-ounce carbine recoil buffer with aluminum body and steel internal weights, plus a made-in-USA carbine recoil spring and mil-spec receiver end plate for a complete system.

Lower receiver not included. Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.