KNS Precision Compact Stock Adapter with Flange Features The KNS Precision Compact Stock Adapter with Flange is built around a two piece design: an externally threaded adapter plug that fits into the threaded buffer socket or ring and an adapter rail section that slots into the plug and is secured with a hex-socket bolt and lock washer. This compact configuration gives builders the same modular versatility as KNS s standard AR/MCX adapters while eliminating the extra rail length that would otherwise lock into the rear AR15 receiver stock plate pocket. Many firearms use the AR15 s buffer tube attachment point to mount common stocks and braces even though they do not mechanically require an in-line buffer spring and this adapter gives those platforms a genuine alternative. Once installed the adapter accepts any Picatinny-style stock or brace such as a SIG MPX folding stock or an SB Tactical FS1913 brace. This specific adapter is not intended for use with a standard AR15 lower paired with an MCX upper and it will not function on standard configuration AR15 style rifles or a 10/22 Charger. It is intended only for applications where the carrier and buffer tube do not protrude past the receiver ring so builders should confirm compatibility with their specific platform before installing. The matte black finish keeps the adapter visually consistent with other black hardware common on modern sporting rifles. Simple to install with just a few included parts the adapter brings stock and brace flexibility to platforms that previously lacked it. The KNS Precision Compact Stock Adapter with Flange is available for sale at GrabAGun for builders working on compatible AR/MCX style platforms. KNS Precision Compact Stock Adapter with Flange Specifications Manufacturer: KNS Precision Model: Compact Stock Adapter with Flange Type: Adaptor Color: Black Finish: Matte Compatible Hosts: AR/MCX Available At: GrabAGun