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Spike’s Tactical Crusader AR-15 Pistol Lower Kit with FDE KAK Shockwave Blade Brace

Part Number: S-PI-P-LR15-66202
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Retail Price:$244.99
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Spike's Tactical Crusader AR-15 Pistol Lower Kit with FDE KAK Shockwave Blade Brace

The Spike's Tactical Crusader lower receiver paired with a Davidson Defense complete lower parts kit and KAK Shockwave Blade Stealth brace creates a fully functional AR-15 pistol lower build. This kit includes everything needed to complete a stripped lower receiver except the serialized lower itself. The Crusader receiver features distinctive engraving with selector markings in both English and Latin, while the FDE Shockwave Blade brace offers rapid adjustment and integrated quick-disconnect sling mounts for easy carry configuration.

Key Features

  • Spike's Tactical Crusader STLS022 lower receiver in hard coat anodized aluminum
  • Davidson Defense 31-piece mil-spec complete lower parts kit with standard curved trigger
  • Heavy-duty 6-position carbine buffer tube with Type II anodized finish
  • KAK Shockwave Blade Stealth stabilizing brace in FDE with rapid adjust system
  • Integrated left and right side quick-disconnect sling mounts on brace
  • Standard AR-15 pattern magazine and fire control compatibility
  • Mil-spec receiver extension and castle nut included

Perfect For

  • Builders creating their first AR-15 pistol configuration
  • Shooters upgrading from a complete upper to a dedicated pistol lower
  • Users wanting a compact, adjustable brace system with sling attachment options
  • Builders preferring iconic engraved receivers with distinctive markings

Crusader Receiver Design

The Spike's Tactical Crusader lower stands out with its signature shield and cross engraving, paired with selector markings that read "PAX PACIS," "BELLUM," and "DEUS VULT" on one side and "PEACE," "WAR," and "GOD WILLS IT" on the opposite side. The multi-caliber marked receiver accepts standard AR-15 pattern components and maintains full mil-spec compatibility across trigger groups, buffer systems, and pistol grips.

Rapid Adjust Brace System

The KAK Shockwave Blade Stealth brace features a rapid adjustment mechanism that allows you to modify the length of pull without tools. The compact blade-style profile keeps the overall footprint manageable, while integrated QD sling mounts on both the left and right sides provide flexible carry options. The brace weighs just 4 ounces and is designed to work with standard mil-spec carbine buffer tubes.

Complete Lower Parts Kit Breakdown

The Davidson Defense lower parts kit includes 31 pieces covering the full fire control group, hammer assembly, trigger components, disconnector, safety selector, magazine catch assembly, bolt catch assembly, and all required pins, springs, and detents. The mil-spec A2 pistol grip comes installed with hardware included, and all components use phosphate and anodized finishes for corrosion resistance.

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

Specifications

Platform: AR-15

Lower Receiver: Spike’s Tactical Crusader STLS022 Lower Receiver

Lower Receiver Model: Crusader STLS022

Lower Receiver Caliber Marking: Multi-Caliber

Lower Receiver Material: Aluminum

Lower Receiver Finish: Hard Coat Anodized

Lower Receiver Color: Black

Lower Receiver Magazine Compatibility: Standard AR-15 Pattern Magazines

Lower Receiver Fire Control Compatibility: Standard AR-15 Pattern Components

Lower Receiver Buffer System Compatibility: Standard AR-15 Receiver Extension Components

Lower Receiver Grip Compatibility: Standard AR-15 Pistol Grips

Lower Receiver Engraving: Crusader Shield / Cross Logo

Lower Receiver Selector Markings: “PAX PACIS,” “BELLUM,” and “DEUS VULT”

Opposite-Side Selector Markings: “PEACE,” “WAR,” and “GOD WILLS IT”

Lower Receiver Manufacturer: Spike’s Tactical

Manufacturer Part Number: STLS022

Lower Receiver UPC: 855319005075

Lower Receiver Weight: 0.75 lb

Lower Parts Kit: Davidson Defense Complete Mil-Spec AR-15 Lower Parts Kit

Lower Parts Kit Piece Count: 31 Pieces

Fire Control Group: Complete Mil-Spec Fire Control Group

Trigger: Standard Curved Mil-Spec Trigger

Hammer: Mil-Spec Hammer

Disconnector: Included

Safety Selector: Mil-Spec Safety Selector

Trigger & Hammer Pins: Included

Magazine Catch Assembly: Included

Magazine Release Button: Included

Bolt Catch Assembly: Included

Pivot Pin: Included

Takedown Pin: Included

Trigger Guard: Included

Buffer Retainer: Included

Detents: Safety Selector, Pivot Pin, and Takedown Pin Detents Included

Springs: Complete Lower Parts Kit Spring Set Included

Pistol Grip: Mil-Spec A2 Pistol Grip

Pistol Grip Color: Black

Grip Hardware: Grip Screw and Washer Included

Lower Parts Kit Material Composition: Steel, Aluminum, and Polymer

Lower Parts Kit Finishes: Phosphate and Anodized

Buffer Tube: Davidson Defense Heavy-Duty 6-Position Carbine Receiver Extension

Buffer Tube Type: Mil-Spec Carbine

Buffer Tube Material: 6061 Aluminum

Buffer Tube Construction: Heavy-Duty Machined Aluminum

Buffer Tube Finish: Type II Anodized

Buffer Tube Color: Black

Buffer Tube Profile: Mil-Spec Diameter Carbine Receiver Extension

Buffer Tube Adjustment Positions: 6

Buffer Tube Outer Diameter: 1.145"

Buffer Tube Inner Diameter: 1"

Buffer Tube Length: 7.15"

Buffer Tube Weight: 3.8 oz.

Buffer Tube Stock / Brace Compatibility: Mil-Spec Diameter Adjustable Stocks and Stabilizing Braces

Buffer: Standard AR-15 Carbine Recoil Buffer

Buffer Weight: 3 oz.

Buffer Body Material: 6061 Aluminum

Buffer Internal Weights: Steel

Buffer Tip: Polymer Impact Pad

Buffer Spring: Standard AR-15 Carbine Recoil Spring

Buffer Spring Origin: Made in USA

Receiver End Plate: US Tactical AR-15/M16 Mil-Spec Receiver End Plate

Castle Nut: Davidson Defense AR-15 Mil-Spec Carbine Castle Nut

Castle Nut Color: Black

Brace: KAK Shockwave Blade Stealth

Brace Brand: KAK Industry

Brace Model: Shockwave Blade Stealth

Brace Type: Adjustable Pistol Stabilizing Brace

Brace Color: FDE

Brace Buffer Tube Compatibility: Mil-Spec Carbine Buffer Tubes

Brace Adjustment: Adjustable

Brace Adjustment System: Rapid Adjust

Brace Sling Attachment: Integrated Side Quick-Disconnect Sling Mounts

Brace QD Mount Position: Left and Right Side

Brace QD Compatibility: Push-Button QD Sling Swivels

Brace Installation: Quick-Install Design for Compatible Mil-Spec Buffer Tubes

Brace Support Design: Designed to Provide Additional Support During Firing

Brace Profile: Compact Blade-Style Design

Brace Weight: 4.0 oz.

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