Kns Precision Ar Mcx Stock Adapter With Flange For Ar Rifles

The KNS Precision AR/MCX STOCK ADAPTER WITH FLANGE provides a modular, buffer-tube-free method for mounting a picatinny-style stock attachment on compatible AR rifles, enabling use of stocks or braces such as the SIG MPX folding stock in place of an AR15 style buffer tube while maintaining a clean, inline setup. This two-part kit includes an externally-threaded adapter plug that fits into the threaded buffer socket or ring and an adapter rail section that slides into the plugs slot, secured together and to the firearm with a hex-socket bolt and lock washer. A distinctive flange integrated into the base of the picatinny plate adds rigidity and helps align components for repeatable performance. The design preserves the ability to utilize a standard takedown pin, detent, and spring on traditional AR15 lower receivers, offering a practical, streamlined alternative when the carrier and buffer tube do not protrude past the receiver ring. Note that this stock adapter is intended for AR rifles in which the MCX upper and carrier geometry align with the adapters specifications and is not compatible with a standard AR 15 lower paired with an MCX upper.