Pedro Santillana appeals his career-offender sentence following a guilty-plea conviction for marijuana-trafficking crimes. He contends that a Texas aggravated-assault conviction used to establish his career-offender status was not a “crime of violence” due to the facts that he was only 17 at the time of the prior felony, the crime involved only a BB gun, no one was harmed, and he received only probation. The underlying facts need not be considered because the guidelines define “crime of violence” specifically to include “aggravated assault.” See U.S.S.G. § 4B1.2, comment, (n.l); United States v. Guerra, 962 F.2d 484, 485-86 & n. 4 (5th Cir.1992) (relying on application note defining “crime of violence”).

Santillana expressly declares that he is not appealing the district court’s discretionary refusal to depart downward from career-offender status • pursuant to U.S.S.G. § 4A1.3. His remaining argument on appeal is thus reduced to a meritless recharacterization of his unsuccessful first argument. The judgment of the district court is AFFIRMED.