Details
4.5-inch Glock 19 Compatible 9mm Threaded Barrel, 416R Stainless Steel, Honeycomb Fluted, Black Nitride, 1:10 Twist, 1/2x28
This is a 4.5-inch 9mm threaded replacement barrel for Glock 19 compatible platforms. It is constructed from 416R stainless steel with a black nitride finish, a honeycomb fluted exterior, a 1:10 twist rate, and a 1/2x28 thread pitch for suppressor and compensator use. Compatible with Glock 19 Gen 1-5 compatible platforms depending on slide configuration.
Key Features
- 4.5-inch threaded barrel, 9mm
- 416R stainless steel, black nitride finish
- Honeycomb fluted exterior
- 1:10 twist rate
- 1/2x28 thread pitch
- Suppressor and compensator ready
- Match grade style profile
- Compatible with Glock 19 Gen 1-5 compatible platforms depending on slide configuration
Perfect For
- Glock 19 compatible platform owners sourcing a threaded honeycomb fluted replacement barrel with a black nitride finish for suppressor or compensator use
- Shooters who want a 4.5-inch extended threaded barrel with a distinctive honeycomb flute pattern on a Glock 19 compatible platform
- Custom Glock 19 builders who want a 416R stainless steel match grade style barrel with black nitride finish and 1/2x28 threading covered in one component
416R Stainless Steel and Black Nitride Finish
The barrel is constructed from 416R stainless steel, a free-machining stainless alloy commonly used in precision pistol barrels for its machinability and corrosion resistance. The 416R designation indicates a modified 416 stainless composition with controlled sulfur content that improves chip formation during precision machining operations, allowing tighter dimensional tolerances to be held during the barrel boring and rifling process. The black nitride surface treatment is applied over the stainless steel, diffusing nitrogen into the steel surface under heat to produce a hard, corrosion-resistant layer that is part of the steel itself rather than a coating sitting on top of it. The black nitride finish adds wear resistance and a uniform black appearance across the barrel exterior while retaining the corrosion resistance characteristics of the underlying stainless steel.
Honeycomb Fluting and Exterior Profile
The honeycomb fluted exterior is machined into the barrel body along its length, producing a pattern of recessed geometric cells across the outer surface. The fluting reduces the overall weight of the barrel compared to a non-fluted profile of the same diameter by removing material from the exterior without reducing the bore or chamber wall thickness. The honeycomb pattern also provides a distinctive visual appearance that differentiates this barrel from a standard round-profile replacement barrel. The match grade style profile and precision machined locking surfaces are intended to provide correct fitment within a Glock 19 compatible slide.
Threaded Muzzle and Compatibility
The 1/2x28 thread pitch at the muzzle end makes this barrel compatible with suppressors, compensators, and muzzle devices threaded at 1/2x28. At 4.5 inches the barrel extends beyond the standard Glock 19 barrel length, which is the standard configuration for a threaded pistol barrel that needs to clear the slide to expose the threaded muzzle end. Compatibility covers Glock 19 Gen 1-5 compatible platforms depending on slide configuration, so verifying fitment with the specific slide being used is recommended before purchase.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify fitment with your specific Glock 19 compatible slide and frame before use. Verify local and state laws regarding suppressor and threaded barrel use before purchasing.
