US SB2250

Amends the Armed Career Criminal Act (18 U.S.C. § 924) to impose a mandatory minimum sentence of 15 to 30 years for individuals who violate federal firearm possession laws (Section 922(g)) and have 3 or more previous serious felony convictions committed on separate occasions

Defines "serious felony conviction" as any felony punishable by a statutory maximum of at least 10 years, or any group of convictions resulting in a combined sentence of at least 10 years imposed in the same or consolidated proceedings

Prohibits courts from suspending sentences or granting probation for qualifying offenders under the enhanced penalty provisions

Applies only to offenses committed after the bill's enactment by individuals who already have 3 or more qualifying prior convictions at the time of the new offense

Explicitly states the amendments do not create any new right to challenge sentences previously imposed under the existing Armed Career Criminal Act