55X AR Stock Adapter

SIG 55X AR Stock Adapter

The SIG 55X AR Stock Adapter is a specialized component that allows you to replace the stock of a SIG 55X series firearm with an AR-15-compatible stock. This provides greater flexibility in configuring the firearm, as a wide variety of AR-15 stocks are available on the market.

The design is the lightest, yet just as strong or stronger than other options on the market, and given the global supply issues with the ACR stock following its discontinuation, this will likely be the last series we produce. The adapter is CNC-machined from aerospace-grade aluminum and anodized in a matte black finish to Mil-Spec Type III Class 2 standards.