(6) when the perpetrator is armed with a deadly weapon.
Whoever commits criminal sexual penetration in the second degree is guilty of a second degree felony. Whoever commits criminal sexual penetration in the second degree when the victim is a child who is thirteen to eighteen years of age is guilty of a second degree felony for a sexual offense against a child and, notwithstanding the provisions of Section 31-18-15 NMSA 1978, shall be sentenced to a minimum term of imprisonment of three years, which shall not be suspended or deferred. The imposition of a minimum, mandatory term of imprisonment pursuant to the provisions of this subsection shall not be interpreted to preclude the imposition of sentencing enhancements pursuant to the provisions of the Criminal Sentencing Act [Chapter 31, Article 18 NMSA 1978].