The Strike Industries Picatinny stock adapter (brand part no. ARPSABK) converts a standard AR-15 lower to accept a Picatinny-mount stock or stabilizer instead of a conventional buffer tube setup, which is especially useful on an upper receiver where everything is self-contained. It threads directly into the AR’s standard rear 1 3/16-16 HSS receiver thread and uses an anti-loosening detent that stays tactile and positive while keeping the rear takedown pin’s detent spring properly captured. A 4-slot 1913 Picatinny rail section and a 360-degree free-swivel QD socket, orientable to either side, round out the design, finished in black anodize.

Key Specifications

• Threads into the standard AR rear 1 3/16-16 HSS receiver thread.
• Uses an anti-loosening detent that stays positive and tactile.
• Keeps the rear takedown pin’s detent spring properly captured.
• Includes a 4-slot 1913 Picatinny rail section.
• Features a 360-degree free-swivel QD socket, orientable to either side.
• Compatible with the majority of folding stocks and stabilizers on the market.
• Finished in black anodize.

Frequently Asked Questions

What does this adapter let me do? It converts an AR lower to accept a Picatinny-mount stock or stabilizer instead of a standard buffer tube setup.

Does it work with folding stocks? Yes — it’s compatible with the majority of folding stocks and stabilizers on the market.

Can the QD socket be positioned on either side? Yes — the 360-degree free-swivel QD socket can be oriented to either the left or right side.

Buy the Strike Industries Picatinny Stock Adapter, Black Anodized

Running a self-contained upper means your stock options open up, and this Strike Industries adapter is the part that makes a Picatinny-mount stock possible. Browse our full rifle stocks selection and order from our Lubbock, Texas gun shop for fast, direct shipping.