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Spike's Tactical Crusader AR-15 Lower Build Kit - Mil-Spec Stock with Recoil Pad

Part Number: S-PI-R-LR15-66177
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On sale $204.99 $154.99
Retail Price:$204.99
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Spike's Tactical Crusader AR-15 Lower Build Kit - Mil-Spec Stock with Recoil Pad

This lower build kit combines the Spike's Tactical Crusader lower receiver with a complete Davidson Defense mil-spec lower parts kit, heavy-duty buffer tube, and enhanced stock featuring a rubberized recoil pad. The Crusader STLS022 lower receiver is hard coat anodized aluminum with distinctive Crusader shield engraving and bilingual selector markings. The 31-piece lower parts kit includes a standard curved mil-spec trigger, mil-spec hammer, complete fire control group, and all required springs and detents. The Davidson Defense 6-position buffer tube is machined from 6061 aluminum with Type II anodizing, paired with a standard carbine recoil buffer and spring. The included mil-spec enhanced stock features multi-position length-of-pull adjustment, integrated cheek-weld surface, rubberized recoil pad, and QD sling socket.

Key Features

  • Spike's Tactical Crusader STLS022 lower receiver with hard coat anodized finish and Crusader shield engraving
  • Complete 31-piece Davidson Defense mil-spec lower parts kit with standard curved trigger and full fire control group
  • Davidson Defense heavy-duty 6-position carbine buffer tube in machined 6061 aluminum
  • Mil-spec enhanced adjustable stock with rubberized recoil pad and integrated cheek-weld surface
  • Integrated QD sling socket and rear sling attachment point on stock
  • Multi-position length-of-pull adjustment for variable stock configuration
  • Standard AR-15 pattern magazine compatibility
  • Mil-spec A2 pistol grip with grip hardware included

Perfect For

  • Builders completing a stripped lower receiver into a functional rifle platform
  • Shooters seeking mil-spec reliability with enhanced ergonomic features
  • Those valuing distinctive lower receiver aesthetics with quality components
  • Builders wanting a complete lower assembly without sourcing individual parts

Crusader Lower Receiver Design

The Spike's Tactical Crusader STLS022 is a hard coat anodized aluminum lower receiver featuring the iconic Crusader shield and cross logo. The lower receiver includes bilingual selector markings, "PAX PACIS," "BELLUM," and "DEUS VULT" on one side with English translations "PEACE," "WAR," and "GOD WILLS IT" on the opposite side. The receiver maintains full mil-spec fire control compatibility and accepts standard AR-15 pattern magazines and components. This lower receiver is compatible with standard AR-15 pistol grips, buffer systems, and fire control groups.

Complete Lower Parts Kit Integration

The kit includes a Davidson Defense complete mil-spec lower parts kit containing 31 pieces. The fire control group features a standard curved mil-spec trigger and mil-spec hammer with a disconnector. All required pins, springs, and detents are included for the safety selector, pivot pin, and takedown pin. The magazine catch assembly, bolt catch assembly, and trigger guard are complete. The included mil-spec A2 pistol grip is black with grip screw and washer hardware. All lower parts kit materials use steel, aluminum, and polymer construction with phosphate and anodized finishes.

Enhanced Buffer System and Stock

The Davidson Defense heavy-duty 6-position carbine buffer tube is machined from 6061 aluminum with Type II anodizing and measures 1.145 inches outer diameter and 1 inch inner diameter. The tube supports six adjustment positions for length-of-pull configuration. The included standard AR-15 carbine recoil buffer weighs 3 ounces with a 6061 aluminum body, steel internal weights, and polymer impact pad. The carbine recoil spring is made in the USA. The mil-spec enhanced stock features reinforced polymer construction with an integrated upper cheek-weld surface, rubberized recoil pad, integrated QD-style sling socket, and integrated rear sling attachment point. The stock is multi-position adjustable for variable length-of-pull and compatible with mil-spec carbine buffer tubes.

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

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 Compatibility: Mil-Spec Diameter Adjustable Carbine Stocks

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

Stock: Mil-Spec Enhanced Stock with Rubberized Recoil Pad

Stock Type: Adjustable Carbine Rifle Stock

Stock Platform: AR-15

Stock Style: Enhanced Tactical Rifle Stock

Stock Configuration: Collapsible / Adjustable

Stock Buffer Tube Compatibility: Mil-Spec Carbine Buffer Tube

Stock Adjustment: Multi-Position Length-of-Pull Adjustable

Stock Material: Polymer

Stock Color: Black

Stock Profile: Enhanced Tactical Carbine Profile

Stock Construction: Reinforced Polymer Construction

Stock Cheek Weld: Integrated Upper Cheek-Weld Surface

Stock Buttpad: Rubberized Recoil Pad

Stock Buttpad Profile: Full-Height Rear Shoulder Pad

Stock Buttpad Attachment: Integrated Rear Pad

Stock QD Sling Mount: Integrated QD-Style Sling Socket

Stock Sling Attachment: Integrated Rear Sling Attachment Point

Stock Adjustment Control: Integrated Carbine-Style Adjustment Lever

Stock Frame Design: Reinforced Tactical Support Structure

Stock Ergonomic Features: Extended Cheek-Weld Surface and Rubberized Recoil Pad

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