The Strike AR Picatinny Stock Adapter enables easy attachment of a 1913 Picatinny interface stock/stabilizer assembly to AR-15 and AR-10 lower receivers, replacing the typical receiver extension attachment. Designed for ARs that don't require an in-line buffer and buffer spring, this conversion offers a cost-effective and swift solution. Its threaded mechanism securely integrates into a standard AR rear 1-3/16-16 HSS right hand thread, featuring a reliable anti-loosening detent that maintains the rear detent spring for the rear takedown pin. The adapter includes a 4-slot rail section, along with a 360 degree free swivel QD socket for flexible setup orientation. It boasts compatibility with a wide range of folding stocks or stabilizers, allowing seamless integration for a self-contained upper receiver setup. Transform your AR lower receiver effortlessly with the Strike AR Picatinny Stock Adapter to accommodate a Picatinny stock or stabilizer whenever needed.