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Spike’s Tactical Crusader AR-15 Rifle Lower Build Kit, Magpul DT Carbine Stock

Part Number: S-PI-R-LR15-66182
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Spike's Tactical Crusader AR-15 Rifle Lower Build Kit, Magpul DT Carbine Stock

This Lower Build Kit centers on the Spike's Tactical Crusader STLS022 lower receiver, machined from aluminum and finished in hard coat black anodizing, carrying the Crusader shield/cross engraving and dual-language selector markings. It's paired with a complete Davidson Defense 31-piece mil-spec Lower Parts Kit, a Davidson Defense heavy-duty 6-position buffer tube, and a USA-made Magpul DT carbine stock in matte black. This item is a serialized component and requires FFL transfer.

Key Features

  • Spike's Tactical Crusader STLS022 lower receiver, aluminum, hard coat anodized black
  • Multi-caliber marking, Crusader shield/cross logo, dual-language selector markings
  • Davidson Defense complete 31-piece mil-spec Lower Parts Kit included
  • Mil-spec A2 pistol grip and standard curved trigger included
  • Davidson Defense 6061 aluminum heavy-duty 6-position carbine buffer tube, Type II anodized
  • Magpul DT carbine stock in matte black, made in the USA, with dual tension auto-engaging friction lock
  • FFL transfer required

Lower Receiver

The Crusader STLS022 is machined from aluminum and finished in hard coat black anodizing, carrying a multi-caliber marking along with the Crusader shield and cross logo in the magazine well. Its selector carries dual-language markings, reading "PAX PACIS," "BELLUM," and "DEUS VULT" on one side and "PEACE," "WAR," and "GOD WILLS IT" on the opposite side, and it weighs 0.75 pounds. It's built to standard AR-15 pattern magazine, fire control, buffer system, and grip compatibility.

Lower Parts Kit

The included Davidson Defense Lower Parts Kit is a complete, 31-piece mil-spec set covering the full fire control group, including a standard curved mil-spec trigger, mil-spec hammer, disconnector, and mil-spec safety selector, along with the trigger guard, magazine catch assembly and release button, bolt catch assembly, pivot pin, takedown pin, buffer retainer, and the full set of detents and springs. Its components are built from a mix of steel, aluminum, and polymer, finished in Phosphate and anodized coatings. A mil-spec A2 pistol grip in black is included with its grip screw and washer.

Buffer System

The buffer tube is a Davidson Defense heavy-duty, 6-position mil-spec diameter carbine receiver extension machined from 6061 aluminum and finished in Type II anodizing, measuring 7.15 inches long with a 1.145-inch outer diameter, a 1-inch inner diameter, and a weight of 3.8 ounces. It's paired with a 3-ounce standard AR-15 carbine recoil buffer built with a 6061 aluminum body, steel internal weights, and a polymer impact pad, along with a USA-made standard AR-15 carbine recoil spring. A Davidson Defense mil-spec castle nut in black and a US Tactical mil-spec receiver end plate complete the receiver extension hardware.

Stock

The Magpul DT carbine stock is made in the USA from reinforced polymer in matte black, with a slim, ergonomic carbine profile and a sloping cheek-weld profile. Length of pull adjusts through a single ambidextrous adjustment lever paired with a dual tension, auto-engaging friction lock for a snug fit on the buffer tube, and it finishes with a non-slip rubber buttpad shaped with optimized curvature. Sling options include a rotation-limiting integral QD sling socket, a rear 1.25-inch sling loop, and compatibility with Magpul ASAP and ASAP QD receiver sling attachments, and the stock also accepts CTR cheek risers for fully extended use or on rifles without rear-facing charging handles.

Follow all manufacturer instructions and safe handling practices.
Ensure compliance with all applicable federal, state, and local laws.
This item must be transferred in accordance 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 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: Magpul DT Carbine Stock

Stock Brand: Magpul

Stock Type: Adjustable Carbine Stock

Stock Platform Compatibility: AR-15 / M4-Style Carbine

Stock Buffer Tube Compatibility: Mil-Spec Carbine Receiver Extensions

Stock Configuration: Collapsible / Adjustable

Stock Adjustment Type: Length of Pull Adjustable

Stock Locking System: Dual Tension Auto-Engaging Friction Lock

Stock Control Lever: Single Ambidextrous Adjustment Lever

Stock Material: Reinforced Polymer

Stock Color: Black

Stock Finish: Matte Black

Stock Profile: Slim Ergonomic Carbine Profile

Stock Cheek Weld: Sloping Cheek-Weld Profile

Stock Butt Pad: Non-Slip Rubber Butt-Pad with Optimized Curvature

Stock Sling Mounts: Rotation-Limiting Integral QD Sling Socket and Rear 1.25" Sling Loop

Stock Additional Sling Compatibility: Magpul ASAP and ASAP QD Receiver Sling Attachments

Stock Cheek Riser Compatibility: CTR Cheek Risers for Fully Extended Stocks or Rifles Without Rear-Facing Charging Handles

Stock Construction: Reinforced Polymer Carbine Stock Body

Stock Length of Pull: Adjustable Based on Buffer Tube Position

Stock Origin: Made in USA

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