The Rosco Manufacturing Bloodline Glock 43X 3.9in Threaded 9mm Barrel is a drop-in, match-grade upgrade built to tighten groups and add muzzle-device capability to your compact Glock. Machined from 416R stainless steel and finished in a durable black nitride, this 3.9-inch barrel features a 1/2x28 threaded muzzle ready for compensators or other compatible accessories, all while maintaining a sleek, low-profile look.

Designed specifically to fit Glock 43X pistols, this Bloodline barrel is optimized for use with SAAMI-approved, factory-new 9mm ammunition and aims to deliver consistent accuracy and reliable function for everyday carry, training, or range sessions. Its carefully honed and polished bore supports smooth feeding and repeatable performance, reflecting Rosco Manufacturing’s focus on practical precision and long-term durability.

• Manufacturer: Rosco Manufacturing
• Model: Bloodline Glock 43X 3.9in Threaded 9mm Barrel
• Caliber: 9mm
• Barrel Length: 3.9 in
• Threaded Barrel: Yes, 1/2x28