Restore factory-style performance and keep your pistol running at its best with the Glock 9mm Luger 4.02" Replacement Barrel (Part #6997)—a no-thread, standard-length barrel built for consistent accuracy, dependable cycling, and OEM-style fitment. Featuring a 4.02-inch barrel length and a 1:9.84 twist rate, this barrel is designed for modern 9mm Luger loads and is specified for Glock pistols with serial number prefix “CHxxx” and newer. Whether you’re replacing a worn barrel, refreshing a duty or training pistol, or maintaining a range gun with high round counts, the Glock #6997 barrel provides the precision and reliability you expect from a factory-spec component.
If you’re searching for a Glock 9mm 4.02 barrel, a Glock replacement barrel 6997, or a no-thread Glock 9mm OEM barrel, this is the correct solution for shooters who want original-style performance with the right fitment for CH-prefix-and-newer pistols.
OEM-Style 4.02" Length: The Proven Standard for Balanced Performance
The 4.02-inch barrel length is a popular “do-it-all” size in the Glock lineup, offering a strong balance between:
Practical carry and holster compatibility
Sight radius (when using iron sights)
Velocity potential for common 9mm loads
Smooth cycling and reliable function
Comfortable handling for both range and defensive-style use (where lawful)
This length is widely appreciated because it performs consistently across a broad range of use cases—from training to everyday carry setups.
9mm Luger Chambering: Affordable, Available, and Effective
Chambered in 9mm Luger, this barrel supports one of the most widely used cartridges in the world. 9mm is favored for:
Broad ammunition availability
Manageable recoil that supports faster follow-up shots
Wide selection of bullet weights and load types
Practical cost for high-volume training
Proven performance when paired with quality ammo
If you shoot often, 9mm’s availability and versatility make it an ideal platform for both serious training and general range use.
1:9.84 Twist Rate: Designed for Common 9mm Loads
This barrel is listed with a 1:9.84 twist, a specification associated with stabilizing common 9mm projectile weights effectively. In practical terms, a twist rate like this supports:
Consistent accuracy with typical 9mm bullet weights
Stable flight characteristics with a variety of factory loads
Reliable performance for training and defensive-style ammunition (as applicable)
The result is a barrel spec tuned for real-world 9mm shooting—not niche or specialized loads only.
No-Thread Design: Classic Profile and Holster-Friendly Fit
This barrel is no-thread, making it ideal for shooters who want:
A standard, streamlined barrel profile
Broad holster compatibility without added length
A factory-style appearance and function
Simplicity and legality considerations in jurisdictions where threaded barrels are restricted (always verify local laws)
If you prefer a clean front end and a true stock-length setup, a non-threaded barrel is the right choice.
Serial Number Fitment Note: “CHxxx & Newer”
Fitment matters with firearm parts, and this model includes an important specification: SER# CHXXX & NEWER. This indicates the barrel is intended for Glock pistols with serial number prefix CHxxx and later production. Matching the correct generation/production range helps ensure:
Proper lockup and fit
Reliable cycling and consistent function
Correct headspace and safe operation
Avoiding compatibility issues across different production runs
Always confirm your pistol’s serial prefix and model compatibility before ordering replacement barrels.
Why Replace a Glock Barrel?
Many shooters replace a barrel for routine maintenance or performance consistency, especially after heavy use. Common reasons include:
High round counts leading to wear
Desire to restore factory-spec accuracy and lockup
Damage from improper cleaning tools or neglect
Preventive maintenance for duty or carry pistols
Keeping a training pistol running smoothly over time
A fresh, correctly fitted barrel can bring a well-used pistol back to “like-new” performance feel.
Ideal for Maintenance, Training Pistols, and Factory-Style Builds
The Glock #6997 9mm 4.02" barrel is an excellent fit for:
Range pistols with frequent use
Training guns where reliability is the priority
Owners who want OEM-style fit and finish
Shooters replacing worn parts with correct-spec components
Anyone maintaining multiple magazines and parts for long-term readiness
It’s a practical, confidence-building replacement part—especially for shooters who rely on their Glock regularly.
Product Details and SEO Search Terms (Easy Reference)
To ensure accurate ordering and listing, reference these identifiers:
Brand/Platform: Glock
Cartridge: 9mm Luger
Barrel Length: 4.02"
Twist Rate: 1:9.84
Threading: No Thread
Serial Fitment: CHxxx & newer
Part / Model Number: 6997
Common searches: Glock barrel 6997, Glock 9mm 4.02 barrel, Glock 4.02 inch no thread barrel, CH prefix Glock barrel, Glock 1:9.84 twist barrel
A Factory-Style Glock 9mm Barrel Replacement You Can Trust
If you’re looking to maintain original performance, restore reliable function, and ensure correct fitment for later-production pistols, the Glock 9mm Luger 4.02" 1:9.84 Twist No-Thread Barrel (Part #6997, for serial CHxxx & newer) is an excellent choice. Built for dependable cycling, consistent accuracy, and everyday practicality, it’s the right replacement barrel for shooters who want their Glock to run like it should—every time you press the trigger.
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