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SPIKE'S TACTICAL AR-15 CASTLE NUT WRENCH

The Spike's Tactical AR-15 Castle Nut Wrench is a purpose-built AR-15 armorer's tool designed to simplify the installation, removal, and maintenance of buffer tube castle nuts on AR-platform rifles. Precision-machined for a secure fit, this compact wrench provides reliable engagement with castle nuts, helping builders and armorers apply proper torque while minimizing slippage and potential damage to firearm components.

Featuring a convenient 3/8" drive interface, the wrench can be paired with a ratchet, breaker bar, or torque wrench for enhanced leverage and precise installation. Whether you're assembling a new rifle, replacing a receiver extension, or performing routine maintenance, this durable tool delivers the control and confidence needed for professional-quality work.

FEATURES

  • Designed specifically for AR-15 and AR-10 castle nuts
  • Precision-machined for secure engagement
  • 3/8" drive interface for use with ratchets and torque wrenches
  • Helps ensure proper castle nut installation and removal
  • Reduces the risk of slippage and component damage
  • Compact design for easy storage and transport
  • Ideal for rifle assembly, maintenance, and upgrades
  • Durable steel construction
  • Suitable for gunsmiths, armorers, and firearm enthusiasts
  • Compatible with most standard AR-platform castle nuts

SPECIFICATIONS

  • Platform Compatibility: AR-15 / AR-10
  • Drive Size: 3/8"
  • Application: Castle Nut Installation and Removal
  • Material: Chrome Moly Steel
  • Use: Assembly, Maintenance, Repair, and Customization

The Spike's Tactical AR-15 Castle Nut Wrench is a simple yet highly effective AR-15 gunsmithing tool built to provide reliable castle nut installation and removal. With its precision-machined design, durable construction, and 3/8" drive compatibility, it offers an efficient solution for firearm builders, armorers, and enthusiasts seeking professional-grade performance during rifle assembly and maintenance.

See all of our AR15s and AR15 parts here.

Available options: 100014394

Color:
Black
Wrench Style:
Material:
4140 Steel
Make Model Fit:
AR-15.Universal
Quantity:
1
Model Number:

Gun Tool Restriction:
Yes
Shop All ED BROWN

Castle Nut Wrench 3/8" Drive for AR-15 Black

Your Price
Crow # 100014394
MFR # SAT1007
UPC 815648020675

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