KNS AR/MCX Stock Adapter with Picatinny Rail
Convert your AR-pattern buffer tube to Picatinny rail mounting for modern stocks and braces. Two-piece modular design with hex-socket bolt. Matte black finish.
Modular Stock Mounting Solution
The KNS Stock Adapter opens new possibilities for firearms that use AR-15 buffer tube threads but don't require the mechanical function of a traditional buffer spring system. This two-piece adapter lets you mount modern Picatinny-rail-compatible stocks and braces in place of a standard buffer tube.
How It Works
The system consists of two components:
- Externally-threaded adapter plug — Screws directly into your firearm's threaded buffer socket
- Picatinny rail section — Slides into the adapter plug and locks in place
- Hex-socket bolt with lock washer — Secures both components together
Key Features
- Converts buffer tube threads to Picatinny rail mounting
- Enables use of SIG MCX folding stocks, modern braces, and other rail-mounted accessories
- Modular design for flexibility and customization
- Matte black finish
- Compact profile designed for receivers where the carrier and buffer tube don't extend past the receiver ring
Important Compatibility Note
This adapter is not compatible with standard AR-15 lowers or MCX uppers. It's engineered specifically for firearms where the buffer tube attachment is present but the buffer spring mechanism isn't required for operation. Verify your platform before purchasing.
Features
- standard configuration ar15 style rifles will not function using this product
- incorporates a flange in the base of the picatinny plate
- allows the use of a standard takedown pin, detent, and spring on traditional ar15 lower receivers
- this product will not work with a standard ar 15 lower and the mcx upper
- intended only for applications where the carrier and buffer tube do not protrude past the receiver ring
