USC Stock Conversion GEN2.0

For M4 style or ACR style stocks. Adaptor included.

(1 customer review)


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The USC Stock Conversion GEN.2 is an FSC GEN 2 adapter kit designed for the HK USC. This innovative kit enables the use of ACR or M4 shafts, with the adapter included for easy installation.

All original parts can be used for the conversion, ensuring compatibility and preserving the integrity of your firearm. Since there is no change to the basic weapon, dismantling is possible at any time, allowing for easy reversion to the original setup. No gunsmithing is required for this conversion, making it accessible for all users. Please note that the buttstock is not included in the kit.

Transform your HK USC with the USC Stock Conversion GEN.2 for enhanced versatility and functionality.

Additional information

Weight 32 oz


MATERIAL: Aluminum / Polymer

1 review for USC Stock Conversion GEN2.0

  1. Timothy J Sanner (verified owner)

    I like the idea of this conversion. My only grip is that it should be made to fit the Magpul AK stock. The ACR stock is hard to find.

    Since you can us an AR stock, I did find that the APG folding AR stock fits this conversion pretty nicely. It looks good also on the HK USC.

    My only gripe is they could have drilled out the mounting hole to the receiver for a pull pin. You will still need to use the USC screws with this conversion.

    • Rebecca Johnson

      Thanks for the feedback, Timothy. We’re glad that you’re satisfied with your purchase.

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