XD M4 Fixed Stock



One of these is the starting point to design your customized XD Carbine Conversion Unit (CCU). Each base model (shown below) comes with a 6″ Standard Rail and Molded Fore Grip. If you have your own M4 stock, buffer tube, castle nut, and lock ring, our M4 Adapter will accept both commercial and Mil-Spec tubes. Every unit is test fired before it ships. Other rail choices are available which may replace the Standard Rail/Molded Fore Grip. All of our rails are Picatinny. Choose from our ACCESSORIES page to customize your CCU.


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