The Forward Controls Design Duplex 2 & 3 Lug Wrench with Wrench Socket, Black (brand part no. JCW, Joint Castle Nut Wrench) is a buttstock castle nut tool built by Forward Controls Design to fit both common 2-lug and 3-lug castle nut patterns in one wrench. Having both patterns covered in a single tool means a gunsmith or home builder doesn’t need to stock two separate wrenches for different receiver extension setups. The included socket adds torque leverage for breaking a stubborn castle nut free or seating one to spec. It’s finished in black to match the rest of a dark range or gunsmithing tool set.

Key Specifications

• Duplex 2 & 3 lug design fits both common castle nut lug patterns with one wrench.
• Wrench socket included adds leverage for installing or removing a buttstock castle nut.

Frequently Asked Questions

What lug patterns does this wrench fit? Both common 2-lug and 3-lug buttstock castle nut patterns.

What is it used for? Installing or removing a buttstock receiver extension’s castle nut during a build or repair.

Buy the Forward Controls Design Duplex Lug Wrench

Add this wrench to your gunsmithing tool kit, shipped fast from our Lubbock, Texas gun shop.