Wheeler 1196191 Delta Series XL Fat Wrench Combo Set

Building or maintaining an AR-15, AR-10, or LR-308 demands precision, and guesswork on torque specs is how you end up with loose components or damaged threads. The Wheeler Delta Series XL Fat Wrench Combo Set brings professional-grade torque control to your workbench—a complete kit designed for DIY builders and gunsmiths who refuse to cut corners on mil-spec or aftermarket assembly.

At the heart of the kit is the XL F.A.T. Wrench, a ratcheting torque wrench engineered to deliver consistent accuracy across a 10–150 ft-lb range—more than enough for every fastening task in an AR platform build. The five dual-ended crowfoot wrenches handle 12 different functions, letting you attack barrel nuts, buffer tubes, muzzle devices, and castle nuts without swapping tools constantly. Each crowfoot is hardened steel, built to withstand the kind of use that separates weekend tinkerers from serious builders.

Everything ships organized in a premium latching hard case, so your investment stays protected whether you're transporting the kit to the range or storing it in the safe room. This is the kind of tool set that pays for itself the first time you avoid a stripped receiver or an under-torqued upper assembly. If you're serious about AR builds, this combo removes the guesswork.

Key Features

• Ratcheting torque wrench with 10–150 ft-lb range for accurate fastening across all AR-15/AR-10/LR-308 builds
• Five dual-ended crowfoot wrenches perform 12 distinct functions, minimizing tool swaps during assembly
• Professional-grade hardened steel construction resists bending and wear under heavy use
• Includes crowfoot wrenches for AR-15/AR-10/LR-308 mil-spec barrel nuts, 5/8″–3/4″ buffer tubes, muzzle devices, and castle nuts
• Premium latching hard case organizes and protects all components during transport and storage

Specifications

Frequently Asked Questions

Is this kit suitable for building an AR-10 or LR-308?

Yes. The XL F.A.T. Wrench and included crowfoot set are designed to handle AR-15, AR-10, and LR-308 mil-spec and aftermarket components, making it a complete solution for any of these platforms.

What torque values does the wrench cover?

The ratcheting torque wrench delivers 10–150 ft-lb of torque, covering all fastening requirements for barrel nuts, buffer tubes, muzzle devices, castle nuts, and other standard AR platform assembly tasks.

What crowfoot wrenches are included in this set?

The set includes five dual-ended crowfoot wrenches that perform 12 functions total. Specifically, you get crowfoot wrenches for AR-15/AR-10/LR-308 mil-spec barrel nuts, 5/8″–3/4″ buffer tubes, muzzle devices, and castle nuts.

Does this kit come with storage?

Yes. All components are organized and secured in a premium latching hard-sided case, making transport and storage simple and keeping your tools protected.