DALLAS -- A North Texas man has been sentenced to six years in federal prison for illegally making hundreds of firearms, some of which ended up in Mexico.

Gary Busby was sentenced Friday during a federal court hearing in Dallas.

He is convicted on one count of conspiracy to manufacture firearms without a license and four counts of structuring financial transactions to evade reporting requirements.

Between 2010 and 2011, prosecutors say the 65-year-old manufactured hundreds of AR-15 and AK firearm receivers into fully functional firearms. Authorities found about 50 of those weapons. Some were recovered while being smuggled into Mexico and the rest recovered by Mexican authorities.