Spike's Tactical Crusader AR-15 Lower Build Kit - Special Operations Carbine Stock

Part Number: S-PI-R-LR15-66174

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Spike's Tactical Crusader AR-15 Lower Build Kit - Special Operations Carbine Stock

On sale ~~$198.99~~ $149.99

Retail Price:$198.99

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Spike's Tactical Crusader AR-15 Lower Build Kit - Special Operations Carbine Stock

The Spike's Tactical Crusader STLS022 lower receiver pairs with a complete mil-spec lower parts kit and a six-position carbine buffer tube system to give you a fully functional lower assembly ready to accept any standard AR-15 upper. The Crusader's hard-coat anodized aluminum construction features distinctive engraving with selector markings in both English and Latin, making this a lower that stands out. This kit ships with a special operations adjustable carbine stock, a Davidson Defense heavy-duty buffer tube, standard carbine buffer and spring, end plate, and castle nut. Lower receiver not included.

Key Features

Spike's Tactical Crusader STLS022 lower receiver with hard-coat anodized finish and multi-caliber markings
Davidson Defense complete mil-spec lower parts kit with 31 components including fire control group, trigger, hammer, and safety selector
Davidson Defense heavy-duty six-position carbine receiver extension with mil-spec diameter and type II anodized finish
Standard carbine buffer and recoil spring made in the USA
Special operations adjustable carbine stock with multi-position length-of-pull adjustment and integrated QD sling mount
Mil-spec A2 pistol grip with hardware included
US Tactical mil-spec receiver end plate and castle nut

Perfect For

Builders looking for a complete lower assembly solution with quality components
Shooters wanting a lower receiver with distinctive tactical aesthetics
Those building a carbine-length AR-15 platform
Users preferring adjustable stock configurations for different shooting positions

Spike's Tactical Crusader Lower Receiver

The Crusader STLS022 is a 7075 aluminum lower receiver finished in hard-coat anodized black. The receiver features Spike's signature shield and cross engraving along 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. This multi-caliber marked lower accepts standard AR-15 pattern magazines and all standard mil-spec fire control components. The Crusader's robust construction and distinctive markings make it a centerpiece for any AR-15 build.

Davidson Defense Buffer System and Stock

This kit includes a Davidson Defense heavy-duty six-position carbine receiver extension built from 6061 aluminum with a type II anodized finish. The buffer tube measures 1.145 inches in outer diameter and maintains full mil-spec compatibility. The included standard carbine buffer weighs three ounces with a polymer impact pad, paired with a made-in-USA carbine recoil spring. The special operations adjustable carbine stock features a spring-loaded adjustment lever, positive-locking mechanism, and extended cheek-weld surface. The stock's open skeletonized design with structural ribbing keeps weight down while the integrated QD sling socket and rear sling attachment point provide tactical versatility.

Complete Lower Parts Kit Integration

The Davidson Defense complete mil-spec lower parts kit contains 31 pieces including a curved mil-spec trigger, mil-spec hammer, disconnector, safety selector, magazine catch assembly, bolt catch assembly, and all required pins, detents, and springs. The included mil-spec A2 pistol grip in black comes with grip screw and washer. All components use standard phosphate and anodized finishes for durability and corrosion resistance. This lower parts kit provides everything needed to complete the lower receiver assembly.

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: Special Operations AR-15 Adjustable Carbine Stock

Stock Type: Adjustable Carbine Buttstock

Stock Platform: AR-15

Stock Style: Special Operations / Tactical Carbine

Stock Configuration: Collapsible / Adjustable

Stock Buffer Tube Compatibility: AR-15 Carbine-Style Receiver Extension

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

Stock Adjustment System: Spring-Loaded Adjustment Lever

Stock Adjustment Lever: Oversized Textured Lever

Stock Lockup: Positive-Locking Carbine Stock Mechanism

Stock Material: Reinforced Polymer

Stock Color: Black

Stock Finish: Molded Black Polymer

Stock Profile: Lightweight Skeletonized Tactical Profile

Stock Frame Design: Open Skeletonized Lower Support Structure

Stock Construction: Reinforced Polymer with Structural Ribbing

Stock Cheek Weld: Extended Broad Cheek-Weld Surface

Stock Buttpad: Integrated Padded Recoil Pad

Stock Buttpad Texture: Honeycomb-Style Textured Rear Surface

Stock Buttpad Profile: Full-Height Rear Pad with Rounded Edges

Stock Shoulder Surface: Wide Shoulder Contact Surface

Stock QD Sling Mount: Integrated QD-Style Sling Socket

Stock Sling Attachment: Integrated Rear Sling Attachment Point

Stock Sling Mount Location: Rear Lower Stock Body

Stock Ventilation: Angled Rear Body Venting

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Check out our State Restrictions page

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Spike's Tactical Crusader AR-15 Lower Build Kit - Special Operations Carbine Stock

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Details

Spike's Tactical Crusader AR-15 Lower Build Kit - Special Operations Carbine Stock

Key Features

Perfect For

Spike's Tactical Crusader Lower Receiver

Davidson Defense Buffer System and Stock

Complete Lower Parts Kit Integration

Specifications

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