- Manufactured from heat treated steel
- Rubberized Grip
- Performs the job of a Mil-Spec castle nut wrench
- Performs the job of a standard length receiver extension wrench
- Material: 4140 Chromoly Steel
- Finish: Phosphate
- Weight: 3.39 oz.
- Length: 7.72"
The ERGO Tactical Carbine Castle Nut Wrench is a must-have tool for any AR owner. The wrench is designed to cut down on the amount of equipment you need to build or adjust your AR platform. The two-in-one wrench performs the job of both a Mil-Spec castle nut wrench as well as a standard-length receiver extension wrench.
The ERGO AR castle nut wrench has an open-end semicircle four-slotted head design to fit Mil-Spec castle nuts and a precision cut opening just under the castle nut wrench that works as a standard-length receiver extension wrench. The innovative design not only saves space in your gear bag but also prevents having to fumble with multiple wrenches when performing these two common operations.
Innovative Design with Superior Craftsmanship
The ERGO Tactical Carbine Castle Nut Wrench is constructed of high-strength, heat-treated 4140 chromoly steel and has a black-phosphate finish for increased durability. The wrench weighs in at only 3.39 ounces with a 7.72-inch overall length, so it won’t take up much space in your bag and is compact enough to fit in your pocket. In addition, the wrench features a soft rubberized handle for a sure-handed grip that increases comfort and safety.
Ready to Go
The AR castle nut wrench comes ready to travel right out of the box and is backed by ERGO’s no-nonsense limited-lifetime guarantee.