Front Sight Base / Trigger Guard Roll Pin Block
This bench block is made from durable nylon and will not mar the finish. It has 2 sides that cradle most front sight bases of the AR15 / M16 barrel assemblies. One side is labeled "IN" to install the front sight taper pins and the other is labeled "OUT" for the removal of the front sight taper pins. There is also an area machined to rest your lower receiver on to install or remove the trigger guard roll pin.