Description
We’re huge fans of the Big Green Reaction Block that ensures the buffer tube is properly aligned with the lower receiver. So, we developed this. It also acts as an alignment check tool.
We also developed a version for the TDP M4 buffer tube in the event the big green one is out of stock.
These are intended to be used with the Forward Controls Design JCW Joint Castle Nut Wrench. The built-in extension surrounds the buffer tube and precludes the need for a spacer to act against the wrench when applying torque.
Made from very serious carbon fiber reinforced high temperature nylon.
