Two men have pleaded guilty in Las Vegas to federal charges in an armed confrontation with U.S. officials over grazing rights near cattleman Cliven Bundy's ranch.

Gerald "Jerry" DeLemus and Blaine Cooper each admitted Thursday they conspired with others who engaged with Bundy in the tense gunpoint standoff in April 2014 about 80 miles northeast of Las Vegas.

DeLemus, of Rochester, New Hampshire, also pleaded guilty to interstate travel in aid of extortion.

Cooper, of Humboldt, Arizona, also pleaded guilty to assault on a federal officer.

Both told U.S. District Judge Gloria Navarro they weren't present for the actual standoff.

Navarro is expected to sentence both men on Dec. 1 to six years in prison.

The two are the first among 19 defendants to enter pleas in the Nevada case.