I was checking out this AMD-65 parts kit: http://www.centerfiresystems.com/miva/merchant.mv?Screen=PROD&Store_Code=CSI&Product_Code=AMD-65KIT&Category_Code=PK "The AMD-65 7.62x39 Features: Gray plastic pistol grips, steel folding stock with rubber butt pad, steel ventalated lower forend, and 12.6 inch barrel. (All NFA rules apply.) Complete bolt, bolt carrier, receiver cover, complete recoil spring, and all semi auto fire control parts. Note: grips may show shipping and storage wear. The barrels in this kit may not be used to assemble new firearms that would be prohibited from importation Pursuant to 18 U.S.C. 925 (d) (3)" First question is, is it legal to put a receiver on this and turn it into a firing gun? The barrel length is only 12.6 inches. Is the receiver the only part needed? What kind of reputation do the AMD guns have?