You have to keep in mind that the HK-94 came with a 16" barrel, making the NFA implications a non-factor. Once the barrel is chopped to MP-5 dimensions, however, it becomes an SBR like any other stocked-rifle that does not meet barrel and overall length requirements. Alternatively, one could likely go the pistol route, provided a stock is not fitted (at all).
Chief
Stand your ground; don't fire unless fired upon, but if they mean to have a war, let it begin here. -- Captain John Parker, Lexington, 1775.
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