Tired of trying to secure your ar parts while installing a pin, detent, or spring? the ar-15 bench block is the answer! specifically designed for ar-15 assembly and disassembly, the ar-15 bench block is the perfect tool.Made of extremely durable, non-marring urethane to protect the finish of your firearms and last for years.It features a variety of notches, grooves, and holes on both sides and is ideally suited for the upper receiver, lower receiver, front sight and charging handle of an ar-15.Type: Bench BlockBlade Type: PlasticBlade Length: AR-15Oal: N/AHandle Description: AR-Style RiflesSharpener Type: 1