Availability: In Stock
The Real Avid Master-Fit Muzzle Device & A2 Buttstock Extension Tube Wrench in 5/8" is a specialized gunsmithing tool designed to handle two of the most common AR platform installation tasks without the frustration of generic wrenches. Whether you're installing a muzzle device or A2-style stock extension tube, this precision-machined crowfoot wrench gives you the right tool for the job—and actually fits the way it should. Built from titanium-coated stainless steel, it's engineered to grip securely, apply torque accurately, and walk away without marring your parts.
AR builders and gunsmiths know the feeling: you grab a standard wrench, and it's either too loose around the fastener or tight enough to risk rounding it out. This wrench is cut to fit the specific geometry of muzzle devices and buttstock extensions, so you get a snug engagement every time. The titanium coating adds durability and corrosion resistance, while the stainless steel base keeps precision-ground edges sharp through repeated builds.
Fits all standard 1/2-inch drive torque wrenches, so you're not locked into a single torque wrench or limited by lack of precision. This means you can dial in the exact torque spec for your parts—critical for muzzle devices that need to stay put and stock tubes that don't wiggle. Whether you're building your first AR or finishing your tenth, having a tool designed specifically for the job beats improvising with undersized or oversized wrenches every time.
| Brand | Real Avid |
| Wrench Size | 5/8" |
| Type | Crowfoot Wrench |
| Drive Size | 1/2-inch |
| Material | Titanium-coated Stainless Steel |
| Application | Muzzle Device & A2 Buttstock Extension Tube Installation |
The Master-Fit wrench is designed to fit all standard 1/2-inch drive torque wrenches, giving you flexibility to use your existing torque wrench or pick one that suits your workflow.
Yes, this 5/8" wrench is specifically designed for standard AR platform muzzle device installation, though fitment depends on your specific muzzle brake or flash hider design. The tight engagement of the crowfoot minimizes the risk of marring while you apply torque.
No—the titanium coating serves a practical purpose: it improves corrosion resistance and adds durability to the stainless steel base, so the wrench maintains its precision finish through years of builds and tools in your gun bag.
A generic adjustable wrench may not fit the geometry of a muzzle device or extension tube securely, risking slippage, rounding of the fastener, or marring of the component. This crowfoot is precision-machined for that specific size and application, ensuring confident engagement and accurate torque application.
SKU: 115693376 • Width: 4.7in • Height: 0.7in • Depth: 6.6in • Weight: 0.38oz
Availability: In Stock
The Real Avid Master-Fit Muzzle Device & A2 Buttstock Extension Tube Wrench in 5/8" is a specialized gunsmithing tool designed to handle two of the most common AR platform installation tasks without the frustration of generic wrenches. Whether you're installing a muzzle device or A2-style stock extension tube, this precision-machined crowfoot wrench gives you the right tool for the job—and actually fits the way it should. Built from titanium-coated stainless steel, it's engineered to grip securely, apply torque accurately, and walk away without marring your parts.
AR builders and gunsmiths know the feeling: you grab a standard wrench, and it's either too loose around the fastener or tight enough to risk rounding it out. This wrench is cut to fit the specific geometry of muzzle devices and buttstock extensions, so you get a snug engagement every time. The titanium coating adds durability and corrosion resistance, while the stainless steel base keeps precision-ground edges sharp through repeated builds.
Fits all standard 1/2-inch drive torque wrenches, so you're not locked into a single torque wrench or limited by lack of precision. This means you can dial in the exact torque spec for your parts—critical for muzzle devices that need to stay put and stock tubes that don't wiggle. Whether you're building your first AR or finishing your tenth, having a tool designed specifically for the job beats improvising with undersized or oversized wrenches every time.
| Brand | Real Avid |
| Wrench Size | 5/8" |
| Type | Crowfoot Wrench |
| Drive Size | 1/2-inch |
| Material | Titanium-coated Stainless Steel |
| Application | Muzzle Device & A2 Buttstock Extension Tube Installation |
The Master-Fit wrench is designed to fit all standard 1/2-inch drive torque wrenches, giving you flexibility to use your existing torque wrench or pick one that suits your workflow.
Yes, this 5/8" wrench is specifically designed for standard AR platform muzzle device installation, though fitment depends on your specific muzzle brake or flash hider design. The tight engagement of the crowfoot minimizes the risk of marring while you apply torque.
No—the titanium coating serves a practical purpose: it improves corrosion resistance and adds durability to the stainless steel base, so the wrench maintains its precision finish through years of builds and tools in your gun bag.
A generic adjustable wrench may not fit the geometry of a muzzle device or extension tube securely, risking slippage, rounding of the fastener, or marring of the component. This crowfoot is precision-machined for that specific size and application, ensuring confident engagement and accurate torque application.
SKU: 115693376 • Width: 4.7in • Height: 0.7in • Depth: 6.6in • Weight: 0.38oz