Russian gun rights activist Maria Butina was sentenced to an 18-month prison term Friday in Washington after failing to register as a foreign agent for conspiring to infiltrate conservative U.S. political circles for the Kremlin.

Butina, 30, pleaded guilty in December to conspiring with a senior Russian official to access the National Rifle Association among other groups from 2015 until she was arrested and detained in July. She will be credited for the more than nine months she already has served.

U.S. District Judge Tanya S. Chutkan also granted a request to deport Butina to Russian after her prison term ends.

Butina was the first Russian national convicted of seeking to influence American policy in the run-up to the 2016 election, though her case was handled by the U.S. attorney’s office for the District of Columbia and the Justice Department’s national security division, not by special counsel Robert S. Mueller III.

Butina admitted to working as an undeclared agent of a foreign government, but she did not admit and was not charged with espionage in federal court proceedings.