Tired of trying to secure your ar parts while installing a pin detent or spring? 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