PA HB1099

Prohibits manufacturing, importing, selling, shipping, delivering, possessing, transferring, or receiving firearms constructed entirely of nonmetal substances or lacking at least one major metal component (barrel, slide, cylinder, frame, or receiver)

Targets firearms that cannot be detected by walk-through metal detectors calibrated to security standards, or that do not generate accurate images when scanned by airport security screening devices

Classifies violations as a third-degree felony under Pennsylvania law

Defines "major component" as the barrel, slide or cylinder, and frame or receiver of a firearm

Takes effect 60 days after enactment