
Real Avid
Real Avid Master-Fit 5-Piece A2 Crowfoot Wrench Set
Product Details
The Real Avid Master-Fit 5-Piece A2 Crowfoot Wrench Set is a purpose-built specialized tool set designed to upgrade A2-style AR15s. This set includes four crowfoot builder wrenches and a heavy-duty 1/2” torque wrench that fit the most common A2/AR15 assembly nut sizes. The wrenches are made from titanium-coated stainless steel and come with a storage rail.
- The Real Avid Master-Fit 5-Piece A2 Crowfoot Wrench Set is a specialized tool set designed to A2-style AR15s.
- The set includes 4 crowfoot builder wrenches and a heavy-duty 1/2” torque wrench that fit the most common A2-style AR15 assembly nut sizes.
- The wrenches are made from titanium-coated stainless steel providing tight tolerances for solid gripping strength and enhanced no-slip fitment.
- This set is specialized for precise fitment and manipulation of A2 barrel nuts buttstocks muzzle devices and castle nuts making it easy to confidently deliver torque when working on your delta ring castle knot or muzzle device.
- The set includes 4 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 wrenches can be affixed and stored on the included storage rail.
- The heavy-duty Master-Fit Torque Wrench boasts a 10 to 150 foot-pound range for various torque settings and requirements.
- With 45 ratcheting teeth the driver clicks every 8 degrees allowing for optimal placement and leverage positions.
- The dual-directional torque feature allows the wrench to set torque on reverse threads as well.
- This wrench features a 10 to 150 foot-pound range (Accurate readings to ±4%) and comes with a hard-sided storage case and 1/2” drive rail holder to secure and organize crowfoot wrenches.
- The Real Avid Master-Fit 5-Piece A2 Crowfoot Wrench Set provides the capability to modify and build your A2-style AR15 with ease and precision.
- Upgrade to Real Avid’s Master-Fit for Master Grade quality and precision when working on your A2-style AR15.
Specifications
| Brand | Real Avid |
|---|---|
| UPC | 813119013812 |
| Color / Finish | Gray |
| Material | Stainless Steel |
| Part Type | Tool |
| Weight | 5.64 lb |
| Condition | New |
Buying this item
- Does the Real Avid Master-Fit 5-Piece A2 Crowfoot Wrench Set ship free?
- Orders over $250 ship free within the US; smaller orders ship for a flat $9.99. Local pickup in Rocky Mount, NC 27803 is also available.
- Is the Real Avid Master-Fit 5-Piece A2 Crowfoot Wrench Set in stock?
- Yes — live distributor inventory shows it in stock and it ships or is ready for pickup within 1–3 business days.
- What is the return policy?
- Non-firearm items may be returned within 30 days (a restocking fee of up to 15% applies if the packaging was opened). Firearms and ammunition are final sale once transferred, per federal law.
All firearm sales require background checks and compliance with federal, state, and local laws. You must be 21+ for handguns/stripped receivers and 18+ for long guns.
More gunsmithing tools like this

Real Avid
Real Avid Bore Boss .223 cal/5.56mm Bore Cleaning Rope
$12.99
Real Avid
Real Avid Gun Tool CORE AR-15
$44.99
Real Avid
Real Avid 2-in-1 Tool For Glock
$19.99
Real Avid
Real Avid AR15 Bolt Carrier Group Scraper
$24.99
Real Avid
Real Avid Smart Bench Block
$17.99
Real Avid
Real Avid Bore Boss .357 cal/.38 cal/9mm Luger Bore Cleaning Rope
$12.99
Real Avid
Real Avid 4-in-1 Tool For Glock
$34.99
Real Avid
Real Avid Pistol Tool Tactical Handgun Multi-Tool
$44.99
Guides for this gear
All articles →
shooting sticks
Shooting Sticks vs. Bipods: Which Is Better for Your Hunt?
Shooting sticks and bipods both improve shooting stability, but they serve different hunting styles. Compare their strengths and choose the support that fits your terrain, rifle, and season.

gifting a firearm
How to Gift a Gun for the Holidays: A Legal Guide to Buying Firearms as Gifts in North Carolina
Buying a gun as a gift is legal, but the rules that separate a legitimate present from a straw purchase matter. Here is how North Carolina hunters and families can do it right.

rifle cleaning
How to Clean and Store Your Rifle After Deer Season: A North Carolina Hunter's Guide
After your last deer hunt, give your rifle a thorough, model-specific cleaning and store it for the months ahead. This practical guide covers safe unloading, bore and action care, stock and optic inspection, humidity control, and separate ammunition storage.
