The tool includes a spanner wrench for M4-style collapsible buttstocks and interchangeable pins for nuts with round and square teeth.
It is equipped with a screwdriver blade for fixed rifle buttstocks, a wrench for the receiver extension tube, and a ½" square opening for a torque wrench.
The pins come in a 3-pack with round pins made of stainless steel and square pins made of steel, each in different sizes and finishes.