The Rosco Manufacturing Bloodline 9mm Luger 4" Pistol Barrel for Glock 19 Gen1-5, model BL-G19-9MM-M-STD-V2, is a drop-in, match grade upgrade built to tighten groups and smooth out performance on your factory Glock 19. Crafted from 416R stainless steel and finished in black Melonite, this non-threaded barrel is broached, honed, and polished to deliver consistent lockup and reliable accuracy without requiring any gunsmithing.

This Bloodline barrel is ideal for shooters who want a dependable everyday range companion or a refined defensive sidearm without changing the feel of their Glock. The beveled edges around the chamber help reduce premature wear often seen on basic aftermarket barrels, supporting long-term durability through training, practice, and regular carry. It reflects Rosco Manufacturing’s focus on practical performance, careful machining, and thoughtful design for modern pistol shooters.

Key Features:

• Manufacturer: Rosco Manufacturing
• Model: Bloodline
• Caliber: 9mm Luger (9x19 Parabellum)
• Barrel Length: 4"
• Barrel Material: 416R Stainless Steel
• Finish: Black Melonite
• Firearm Fit: Glock 19 Gen 1-5
• Twist Rate: 1:10 RH
• Type: Non-Threaded Drop-In Match Grade Barrel