Parts

Compliance parts for USC/UMP and SL8/G36 conversions

Those are the HDPS CORP. U.S. made compliance parts that you need when using the real HK UMP parts on your USC or real HK G36 parts in the SL8 conversions in order to meet Federal regulations regarding imported parts count in an Imported Assault Rifle 18-U.S.C. section 922(r).

Warning, failure to comply will render your conversion illegal living you at mercy of $250,000.00 fine and up to 10 years in Fed Jail charges.

If you already own some of those parts, You can purchase only what you need

( Be careful purchasing cheap parts elsewhere, you will receive what you paid for, cheap and poor quality pats )