Unless you have replaced more parts with U.S. made parts than you mentioned to make your SKS "conversion! 922r compliant you might want to take your post down until you do some research; n U.S. Code 922r. Also, your SKS: s no lnger a Curio when c with the modifications you made.
No need to invite a visit from the men in dark suits story ng black SUV's
Below is the wording from 18 U.S.C. § 922(r) and 27 CFR 478.39 Disclaimer: This is an attempt to present this law. Information taken from this context should not be considered permission to manufacture semiautomatic rifles.
18 U.S.C. § 922(r)
It shall be unlawful for any person to assemble from imported parts any semiautomatic rifle or any shotgun which is identical to any rifle or shotgun prohibited from importation under section 925(d)(3) of this chapter as not being particularly suitable for or readily adaptable to sporting purposes except that this subsection shall not apply to -
(1) the assembly of any such rifle or shotgun for sale or distribution by a licensed manufacturer to the United States or any department or agency thereof or to any State or any department, agency, or political subdivision thereof; or
(2) the assembly of any such rifle or shotgun for the purposes of testing or experimentation authorized by the Attorney General.
Q: What modifications can be made on C&R firearms without changing their C&R classification?
The definition for curio or relic (“C & R”) firearms found in 27 CFR § 478.11 does not specifically state that a firearm must be in its original condition to be classified as a C&R firearm. However, ATF Ruling 85-10, which discusses the importation of military C&R firearms, notes that they must be in original configuration and adds that a receiver is not a C&R item. Combining this ruling and the definition of C&R firearms, the Firearms Technology Branch (FTB) has concluded that a firearm must be in its original condition to be considered a C&R weapon.
It is also the opinion of FTB, however, that a minor change such as the addition of scope mounts, non-original sights, or sling swivels would not remove a firearm from its original condition. Moreover, we have determined that replacing particular firearms parts with new parts that are made to the original design would also be acceptable-for example, replacing a cracked M1 Grand stock with a new wooden stock of the same design, but replacing the original firearm stock with a plastic stock would change its classification as a C&R item.