An overview video of the new Strike AR Picatinny Stock Adapter from Strike Industries... "The Strike AR Picatinny Stock Adapter gives the user the ability to mount a 1913 Picatinny interface stock/stabilizer assembly where normally the receiver extension is attached. For ARs that do not need an in-line buffer and buffer spring to function, this is a simple, fast and budget friendly conversion that works on both AR-15 and AR-10 lower receivers.