Background
A federal information charged Sealed Juvenile with two counts of possessing or transferring a machinegun under 18 U.S.C. §§ 922(o) and 924(a)(2). The charges arose from Glock switches—devices that convert semiautomatic Glock pistols into automatic weapons. To proceed federally under the Juvenile Justice and Delinquency Prevention Act, the government certified under 18 U.S.C. § 5032 that Mississippi lacked jurisdiction over the alleged conduct because state law did not then regulate possession or transfer of machineguns.
The district court rejected Juvenile’s challenges to federal jurisdiction and the constitutionality of § 922(o). Juvenile then admitted the charges and was adjudicated delinquent. He waived appellate review of nonjurisdictional issues except the Second Amendment ruling and received 19 months of detention followed by supervised release until age 21.
The Court’s Holding
The Fifth Circuit affirmed. It held that the government’s § 5032 certification established federal jurisdiction because Mississippi law did not prohibit the charged conduct when it occurred. The state’s handgun-possession statute did not cover a Glock switch, which cannot itself discharge a projectile, and its concealed-weapons statute required concealment—conduct neither charged nor required by the federal offenses. Mississippi’s statute specifically prohibiting machinegun-conversion devices did not take effect until after the charged conduct.
The court further held that Glock switches qualify as “Arms” under the Second Amendment because they make firearms more effective by enabling faster follow-up shots. Nevertheless, circuit precedent in United States v. Wilson foreclosed Juvenile’s constitutional challenge by treating machineguns as dangerous and unusual weapons outside Second Amendment protection. Finally, Juvenile’s claim that ATF exceeded its statutory authority by classifying Glock switches as machineguns was barred by his knowing and voluntary appeal waiver because it was nonjurisdictional and fell outside the waiver’s reserved Second Amendment issue.
Key Takeaways
- A § 5032 certification supported federal juvenile jurisdiction because Mississippi had no law covering possession or transfer of Glock switches when the alleged conduct occurred.
- Glock switches are Second Amendment “Arms,” but Fifth Circuit precedent still permits their prohibition as dangerous and unusual weapons.
- Juvenile’s appeal waiver barred his separate statutory challenge to ATF’s treatment of Glock switches as machineguns.
Why It Matters
The decision clarifies that, in the Fifth Circuit, firearm-conversion devices can fall within the Second Amendment’s textual coverage while remaining unprotected under binding precedent governing dangerous and unusual weapons. It also illustrates that federal juvenile jurisdiction under § 5032 turns on whether state law covered the particular alleged act at the relevant time, not whether state law regulated related firearm conduct more generally.
Judge King concurred in the judgment but would have resolved the constitutional issue directly under Wilson because she viewed Juvenile’s purported as-applied claim as effectively facial. She also reasoned that a facial challenge would fail independently because § 922(o) validly reaches at least some non-bearable machineguns.