223 5.56 Trigger Hammer test block
Precision machined in the USA for a good fit, this ensures your lower reciever will be protected from hammer damage. Trigger block is held in place by the forward take-down pin and installs quickly. Made to work with our lower reciever vise block so you can work on the trigger while the receiver is secured in vise. Receiver, lower vise block and vise shown in additional pictures is for demonstration only and not included.