In the world of modular firearms, adaptability is key. Enter the AR/MCX Stock Adapter—a clever solution designed for those who wish to replace the traditional AR15 buffer tube with a Picatinny-style stock attachment, such as the SIG MPX folding stock. This adapter provides an innovative means to enhance your firearm's versatility without compromising its integrity.
Many rifles rely on the AR15's buffer tube not for mechanical necessity but simply as a mount for stocks and braces. The AR/MCX Stock Adapter steps in where these tubes are unnecessary, offering a streamlined alternative that maintains functionality while allowing greater customization.
The kit comprises two main components along with an attaching bolt: an externally-threaded adapter plug and an adapter rail section. The plug fits securely into any threaded buffer socket or ring, ready to receive accessories seamlessly. Once aligned, these pieces interlock firmly using a hex-socket bolt accompanied by a lock washer—ensuring stability under demanding conditions.
A word of caution: this product is not compatible with standard AR 15 lowers when paired with MCX uppers—it’s crafted specifically for setups where neither carrier nor tube extend beyond the receiver ring.
For shooters seeking enhanced flexibility and efficiency in their weapon systems, this adapter stands out as both practical and indispensable—a testament to thoughtful engineering meeting real-world needs.
Features
- 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
- standard configuration ar15 style rifles will not function using this
- when using this product on an ar15 lower receiver you must incorporate a take down pin that does not require the use of a spring or detent