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Spike’s Tactical Crusader AR-15 Pistol Lower Kit with FDE SBA3 Brace

Part Number: S-PI-P-LR15-66192
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Retail Price:$304.99
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Spike's Tactical Crusader AR-15 Pistol Lower Build Kit, FDE SBA3 Adjustable Stabilizing Brace

This complete AR-15 pistol lower build kit pairs Spike's Tactical Crusader STLS022 lower receiver with a Davidson Defense mil-spec lower parts kit, buffer system, and SB Tactical SBA3 adjustable stabilizing brace in Flat Dark Earth. The kit includes everything needed to complete a pistol-configured lower receiver except the upper assembly.

Key Features

  • Spike's Tactical Crusader STLS022 lower receiver with hard coat anodized finish and Crusader Shield engraving
  • Davidson Defense 31-piece mil-spec lower parts kit with complete fire control group
  • Standard curved mil-spec trigger and hammer for reliable operation
  • Davidson Defense heavy-duty 6-position carbine receiver extension with Type II anodized finish
  • SB Tactical SBA3 adjustable stabilizing brace in Flat Dark Earth with 5-position adjustment
  • Integrated QD sling socket on SBA3 brace for quick-detach sling attachment
  • Standard AR-15 carbine recoil buffer and spring included
  • Mil-spec castle nut and end plate for secure buffer tube assembly

Perfect For

  • Builders creating AR-15 pistol platforms with quality components
  • Shooters wanting a complete lower assembly without selecting individual parts
  • Those preferring the Crusader lower's distinctive engraving and design
  • Pistol builds requiring adjustable brace compatibility
  • Users who value Spike's Tactical quality and Davidson Defense reliability

Spike's Tactical Crusader Lower Receiver

The Crusader STLS022 is a hard coat anodized aluminum lower receiver with multi-caliber marking. It features distinctive Crusader Shield and Cross engraving along with selector markings reading Pax Pacis, Bellum, and Deus Vult on one side and Peace, War, and God Wills It on the opposite side. The receiver accepts standard AR-15 pattern magazines and fire control components, making it fully compatible with mil-spec parts ecosystems.

Davidson Defense Mil-Spec Lower Parts Kit

This 31-piece lower parts kit includes a complete mil-spec fire control group with standard curved trigger, hammer, disconnector, and safety selector. The kit contains all required pins, springs, detents, magazine catch assembly, bolt catch assembly, trigger guard, and buffer retainer. A black mil-spec A2 pistol grip with hardware is included. The combination of phosphate and anodized finishes provides corrosion resistance across steel and aluminum components.

SB Tactical SBA3 Adjustable Stabilizing Brace

The SBA3 is a 5-position adjustable stabilizing brace in Flat Dark Earth that mounts to the included mil-spec carbine receiver extension. The compact, low-profile design uses reinforced polymer construction with an adjustable nylon stabilizing strap in black. An integrated QD sling socket accepts push-button quick-detach sling swivels. The brace slides onto the standard mil-spec carbine buffer tube for secure attachment.

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

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 Brace Compatibility: Mil-Spec Diameter Adjustable 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

Pistol Brace: SB Tactical SBA3 Adjustable Pistol Stabilizing Brace

Brace Brand: SB Tactical

Brace Model: SBA3

Brace Type: Adjustable Pistol Stabilizing Brace

Brace Platform Compatibility: AR-Pattern Platforms Using a Mil-Spec Carbine Receiver Extension

Brace Buffer Tube Compatibility: Standard Mil-Spec Carbine Buffer Tube

Brace Adjustment: 5-Position Adjustable

Brace Mounting Interface: Mil-Spec Carbine Receiver Extension

Brace Attachment Style: Slide-On Adjustable Carbine-Style Mount

Brace Material: High-Strength Impact-Resistant Polymer

Brace Color: Flat Dark Earth / FDE

Brace Finish: Matte FDE

Brace Style: Compact Carbine-Style Stabilizing Brace

Brace Stabilizing Strap: Adjustable Nylon Strap

Brace Strap Color: Black

Brace QD Sling Mount: Integrated QD Sling Socket

Brace Sling Compatibility: Push-Button QD Sling Swivels

Brace Profile: Compact, Lightweight, Low-Profile Adjustable Design

Brace Construction: Reinforced Polymer Construction

Brace Adjustment Control: Integrated Adjustment Lever

Brace Rear Design: Split Stabilizing Design with Adjustable Strap

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