Real Avid Master Fit A2 Wrench Set – 5 Piece


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Enhance Your A2-Style AR15 with Real Avid’s Master-Fit 5-Piece A2 Crowfoot Wrench Set

The Real Avid Master-Fit 5-Piece A2 Crowfoot Wrench Set is a specialized and purpose-built tool collection crafted to precisely fit and manipulate A2-style AR15 barrel nuts, buttstocks, muzzle devices, and castle nuts. This comprehensive set includes four crowfoot wrenches and a heavy-duty Master-Fit Torque Wrench, featuring titanium-coated stainless steel construction for a superior no-slip fit and robust gripping strength. Conveniently organized on a storage rail and housed in a durable hard-sided case, this set elevates your AR15 modification and assembly to a Master Grade® quality and precision level.

The Real Avid Master-Fit 5-Piece A2 Crowfoot Wrench Set provides the essential tools for modifying and building your A2-style AR15 with unparalleled ease and precision. Elevate your AR15 DIY projects to a new level of quality and upgrade to Real Avid’s Master-Fit for Master Grade precision.

Key Features:

  • Purpose-built for A2-style AR15s, the set includes four crowfoot builder wrenches and a heavy-duty 1/2” torque wrench, accommodating common A2/AR15 assembly nut sizes.
  • Constructed from titanium-coated stainless steel, these wrenches offer a precise fit and solid gripping strength, ensuring enhanced no-slip fitment and durability.
  • Designed for precise fitment and manipulation of A2 barrel nuts, buttstocks, muzzle devices, and castle nuts, allowing confident torque application for various components.
  • Includes specialized wrenches for basic A2 components and Free-Float barrel nuts: 20 Hole & 4 Hole Free-Float Barrel Nut wrench, Extended & Standard castle nut wrench, 3/4” Muzzle device wrench, 5/8” Muzzle device wrench / A2 Buttstock extension Tube wrench.
  • The heavy-duty Master-Fit Torque Wrench offers a range of 10 to 150 foot-pounds for diverse torque settings, providing ±4% accurate readings, with 45 ratcheting teeth allowing optimal placement and leverage positions.
  • The dual-directional torque feature enables torque setting on reverse threads as well, ensuring comprehensive functionality.
  • The set includes a hard-sided storage case and a 1/2” drive rail holder to secure and organize the crowfoot wrenches.


  • Brand: Real Avid
  • Model: Master Fit A2 Wrench Set – 5 Piece


Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Real Avid Warranty & Returns

Please return or exchange products to the original place of purchase. If you are unable to return or exchange your product to the original place of purchase contact Real Avid customer service at or toll free at 800.286.0567.


Warranties are product specific. See the product instructions included with the products. If you have any questions please contact our customer service at or toll free at 800.286.0567.


You have 30 calendar days to return an item from the date you received it.

To be eligible for a return your item must be unused, in its original packaging, and in the same condition that you received it. Please include your order number with the return. Prior to shipping, contact us at or toll free at 800.286.0567.


If your return is approved, a full refund of the price of the item will be applied to your original method of payment within 7 business days of receiving your authorized return.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.