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AR/MCX Picatinny Stock Adapter Without Flange

AR/MCX Picatinny Stock Adapter Without Flange

KNS Precision · Accessories

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$59.99at Brownells

checked Sep 30, 2026

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About this part

The AR/MCX Picatinny Stock Adapter Without Flange is an accessory from KNS Precision. One store lists it, Brownells at $59.99.

Specifications

Manufacturer
KNS Precision
Platform
AR-15

From the manufacturer

An Easy Way to Attach the Ideal Stock

Increasingly, many rifles and AR-style pistols on the market are using AR buffer tubes for stock attachments, allowing consumers to access the incredibly large aftermarket of AR-style buttstocks. However, since these guns do not require the buffer tube for operation, like a standard AR-15, KNS Precision provides its AR-15/MCX Picatinny Stock Adapters as an alternative. This setup allows for the use of folding stocks, enabling owners to shorten the length of their guns.

Each KNS Precision AR-15/MCX Picatinny Stock Adapter ships with two separate components, along with a bolt that secures the unit into place. An included adapter plug threads into the buffer socket on an AR's lower receiver, and the Picatinny-rail section attaches to the plug with the included bolt. The all-black unit is machined entirely from aluminum.

Three models of the KNS Precision AR-15/MCX Picatinny Stock Adapter are available, one without a flange and two flange-equipped models of different lengths. The flange-equipped versions are designed for firearms that require the use of the takedown pin, detent and spring found on AR-15 lower receivers.

Note: this adapter will not allow for functioning on standard-configuration AR-15s that require the use of a buffer and buffer spring.

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$59.99 at Brownells
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