Master-Fit® 13-Piece AR15 Crowfoot Wrench Set

Master-Fit® 13-Piece AR15 Crowfoot Wrench Set


Armorer’s Crowfoot Wrench Set & Ratcheting Torque Wrench

Crafted from titanium-coated stainless steel, The Master-Fit® 13-Piece AR15 Crowfoot Wrench Set provides unmatched durability and corrosion resistance, ensuring reliable use. The set includes a comprehensive range of sizes tailored for specific applications, including the adjustment of 3-prong flash hiders, castle nuts and a variety of free-float barrel nuts, alongside standard A2 components. This diversity allows for flexibility and precision in assembling and maintaining your AR15, making it an indispensable toolset for both novice and seasoned gunsmiths.

The inclusion of a heavy-duty Master-Fit Torque Wrench elevates this kit to professional armorer standards. With its broad torque range (10 to 150 foot-pounds) and precise adjustability (accurate to ±4%), it enables exact torque application for every component, minimizing the risk of damage from over-tightening. This feature, combined with the wrenches’ deep seat fitment, ensures secure, no-slip operation and protection of firearm components from marring and wear.

Each wrench is specifically designed for optimal engagement with its respective component, reflecting a commitment to detail and quality that sets this set apart. Whether for routine maintenance, critical repairs or comprehensive building projects, the Master-Fit 13-Piece AR15 Crowfoot Wrench Set has you covered.

WARNING: This product can expose you to chemicals including Nickel (Metallic), which is known to the State of California to cause cancer. For more information, go to

Availability: In stock SKU: AVMF13WS Tags: , GTIN: 813119013805

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  • The Master-Fit® 13-Piece AR15 Crowfoot Wrench Set delivers precision, durability and versatility in one comprehensive package. Each wrench is crafted from titanium-coated stainless steel, ensuring exceptional strength and resistance to wear and corrosion. This material choice not only extends the life of the tools but also provides a higher level of reliability and confidence in their use. The set includes wrenches specifically designed for a wide range of AR15 components, including 3-prong flash hiders, castle nuts and various free-float barrel nuts, as well as standard A2 components, offering unmatched versatility for both maintenance and customization tasks.

    The Master-Fit Torque Wrench has precision and functionality. Its capability to adjust from 10 to 150 foot-pounds with an accuracy of ±4% allows for application of torque to firearm components. This precision ensures that each component is secured to its optimal specification, reducing the risk of damage from over-tightening and ensuring the firearm’s reliability and performance. The torque wrench features a 1/2″ drive and 45 ratcheting teeth, which facilitate fine adjustments and provide a satisfying user experience with every click, signifying exact torque application.

    The design of the wrenches within the set is purpose-built, focusing on minimizing marring on gun parts while ensuring a solid grip and no-slip fitment. This focus on minimizing cosmetic and structural damage to components is paramount, especially when working with high-value firearms. The specialized design extends to the “Deep Seat” fitment of the wrenches, ensuring that each tool engages fully with its respective component, providing a secure fit that prevents slipping and allows for the application of necessary torque without the risk of damage.

    The inclusion of a hard-sided storage case with structured foam wrench pockets and a molded-in torque wrench cradle underlines the set’s commitment to organization and tool protection. This storage solution ensures that each tool is kept secure and in optimal condition, ready for use. It also enhances the portability of the set, making it a convenient option for gunsmiths, armorers and enthusiasts who require their tools to be mobile and readily accessible.

    The Master-Fit 13-Piece AR15 Crowfoot Wrench Set is more than just a collection of tools; it has innovative design and practical functionality. It stands as an essential investment for anyone serious about AR15 maintenance and customization, providing the precision, durability and versatility needed to tackle a wide range of tasks with confidence and expertise.


Upgrade Your Firearm DIY Experience

• Titanium-coated stainless steel construction for enhanced durability and corrosion resistance
• Includes 12 specialized crowfoot wrenches tailored for AR15 components
• Features a heavy-duty torque wrench adjustable from 10 to 150 foot-pounds with ±4% accuracy
• Ratcheting head with 45 teeth allows for fine adjustment and optimal leverage
• Specialized design for a precise fit to minimize marring on firearm parts
• “Deep Seat” fitment ensures secure engagement and no-slip operation
• Hard-sided case with structured foam for organized tool storage and protection
• Compatible with 3-prong flash hiders, castle nuts and various free-float barrel nuts
• Dual-directional torque feature for correct application on reverse threads
• Designed for professional armorer’s and enthusiasts’ firearm maintenance and customization needs
• Engineered to meet the rigorous demands of both novice and seasoned gunsmiths

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These new armorer’s tools are the most comprehensive all-in-one AR15 Armorer’s Torque Wrench Kits ever assembled. Master-Fit single purpose crowfoot wrenches are made specifically for building and modifying AR15 rifles. Specialized for precise fitment and manipulation of MIL-SPEC and free-float barrel nuts, muzzle devices and castle nuts. The titanium coated...

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