Ballistic Advantage Premium Series 9mm 4.5" Threaded Barrel – Fits Glock 19 Gen 3–5, QPQ Black, 1/2x28 (BAPSG195T1Q / 819747026125)
Upgrade your Glock 19 with match-grade performance using the Ballistic Advantage Premium Series 9mm 4.5" Threaded Barrel, model BAPSG195T1Q. Designed specifically for Glock 19 Gen 3, Gen 4, and Gen 5 pistols, this premium drop-in barrel delivers enhanced accuracy, superior corrosion resistance, and suppressor-ready convenience in a sleek black QPQ finish. Rifle Supply+2SkidTactical.com+2
Precision-crafted from hardened 416R stainless steel and finished in QPQ (quench-polish-quench) nitride, this 9mm barrel is built to meet the demands of discerning shooters who expect both performance and durability from their Glock upgrades. Rifle Supply+2firearmsunknown.com+2
Key Features – Ballistic Advantage BAPSG195T1Q Glock 19 Barrel
Premium 416R Stainless Steel Construction
Ballistic Advantage builds this Glock 19 threaded barrel from hardened 416R stainless steel, a steel alloy commonly used in high-end match barrels for its balance of strength, ductility, and corrosion resistance. firearmsunknown.com+2Rifle Supply+2
Exceptional strength & toughness support long service life under heavy use.
Enhanced corrosion resistance makes it ideal for EDC, duty, or training in challenging environments.
Precisely machined to tight tolerances for reliable lockup and improved mechanical accuracy. AR15Discounts+1
Each Premium Series pistol barrel is honed, lapped, and tumbled so it’s free of imperfections and does not require a lengthy break-in period—you can expect consistent performance from your very first range session. Rifle Supply+2SkidTactical.com+2
QPQ Corrosion-Resistant Black Finish
The QPQ (quench–polish–quench) nitride finish provides a deep black color and outstanding surface protection:
Increased surface hardness for exceptional wear resistance, especially along the lands and grooves. AR15Discounts+1
Superior corrosion resistance, even when exposed to sweat, humidity, and harsh cleaning chemicals. AR15Discounts+1
A smooth, low-friction surface that enhances reliability and makes cleaning easier.
This finish not only looks great in a Glock slide cut but also ensures your barrel can stand up to hard, real-world use.
Threaded 1/2x28 – Suppressor & Comp Ready
Ready to expand your Glock 19’s capabilities, this Premium Series barrel comes factory threaded 1/2x28 and includes a standard thread protector: Rifle Supply+1
Attach 9mm suppressors using the most common U.S. thread pitch.
Run compensators or muzzle devices to help reduce muzzle rise for faster follow-up shots.
Protect the threads when running the pistol without a device thanks to the included thread protector.
The slightly extended 4.5" length gives enough surface for threading while maintaining a compact, carry-friendly footprint. GrabAGun+1
Designed for Glock 19 Gen 3–5 – True Drop-In Fit
This barrel is purpose-built to fit Glock 19 Gen 3, Gen 4, and Gen 5 pistols, making it an easy, drop-in upgrade: Rifle Supply+2blackwolfsupply.com+2
Compatible with OEM Glock 19 slides across three generations.
Maintains reliable cycling with standard Glock recoil systems and quality ammunition.
Ideal for building a custom G19, refreshing a high-mileage duty pistol, or optimizing a competition/EDC hybrid build.
Because Ballistic Advantage barrels are held to tight tolerances and meet SAAMI chamber specifications, you can expect consistent chamber support and reliable extraction. AR15Discounts+1
1:10 Twist Rifling for Versatile 9mm Performance
The 1:10 twist rate is a proven choice for 9mm Luger, stabilizing a broad range of bullet weights commonly used in defensive, practice, and competition loads: Rifle Supply+2blackwolfsupply.com+2
Performs well with 115gr, 124gr, and 147gr loads.
Supports both standard pressure and +P ammunition (in pistols rated for +P).
Optimized to deliver repeatable accuracy for everything from bulk training ammo to premium defensive rounds.
Combined with the honed and lapped bore, this twist rate helps unlock your Glock 19’s true accuracy potential.
Built for Accuracy, Reliability & Serious Use
Ballistic Advantage’s Premium Series pistol barrels are engineered for shooters who demand more from their sidearms:
Each barrel is crafted to exacting tolerances, with bore deviation held to less than 0.0001" to exceed typical factory standards for reliability and accuracy. blackwolfsupply.com+1
A smooth, consistent bore and precise chamber geometry support tight groups and consistent point of impact. AR15Discounts+1
Every barrel is backed by Ballistic Advantage’s accuracy and satisfaction guarantee, so you can upgrade with confidence. AR15Discounts+1
Whether you’re tightening up split times in competition, fine-tuning your carry gun, or simply building a high-performance Glock 19, this barrel is constructed to deliver.
Ideal For: EDC, Range, Competition & Suppressor Hosts
The Ballistic Advantage Premium Series 9mm 4.5" Threaded Barrel for Glock 19 Gen 3–5 is an excellent choice if you:
Want a suppressor-ready Glock 19 barrel with a proven 1/2x28 thread and included thread protector.
Prefer the durability and corrosion resistance of hardened 416R stainless with a QPQ black finish. Rifle Supply+2firearmsunknown.com+2
Are upgrading a Glock 19 for everyday carry, home defense, or duty, where reliability and accuracy matter.
Need a quality barrel for a custom G19 build or slide cut, combining performance with a clean, tactical look.
This barrel brings together all the features serious shooters look for in a Glock 19 upgrade—precision construction, tough finish, threaded muzzle, and drop-in convenience.
At-a-Glance – BAPSG195T1Q / 819747026125
Brand: Ballistic Advantage
Series: Premium Series Pistol Barrel
Model: 9mm 4.5" Threaded for Glock 19 Gen 3–5
Caliber: 9mm Luger
Length: 4.5"
Material: Hardened 416R stainless steel
Finish: QPQ corrosion-resistant, black
Twist Rate: 1:10
Thread: 1/2x28 with standard thread protector
Fit: Glock 19 Gen 3, Gen 4, Gen 5
MPN: BAPSG195T1Q
UPC: 819747026125 Rifle Supply+1
If you’re ready to turn your Glock 19 into a precision-capable, suppressor-ready pistol, the Ballistic Advantage Premium Series 9mm 4.5" Threaded Barrel 1/2x28, QPQ Black (BAPSG195T1Q) is a smart, high-value upgrade engineered for performance, durability, and reliability.
The End
