CMC Triggers 75524 Match Grade Fluted Barrel for Glock 19 Gen3-4 9mm, 4.01" Bronze Satin DLC Stainless Steel

If you shoot a Glock 19 Gen3 or Gen4 and want tighter groups without the gunsmith bill, the CMC Triggers Match Grade Fluted Barrel for Glock 19 is a drop-in upgrade engineered for accuracy. This 4.01" barrel is manufactured in-house in Texas with precision tolerances and a proprietary DLC coating that reduces friction in the bore and chamber. The fluted profile isn't just for looks—it's part of CMC's commitment to precision, paired with their exacting quality control to deliver the kind of consistency that matters on the range and in the field.

The barrel starts with 416R stainless steel, stress-relieved and hardened to 38–42 Rockwell C before final profiling. The bore is rifled with a 6-groove, 1:10 right-hand twist and finished to a maximum roughness average of 12 RA, then double-honed to ensure the smoothest possible bore. The SAAMI Match Grade chamber is cut and finished to 16 RA precision. All finished bore and groove dimensions are held to ±0.0005" tolerance and kept uniform within 0.0002" to eliminate the kind of variation that saps accuracy. The Bronze Satin DLC finish with hexagonal boron nitride (hBN) coating on the bore and chamber cuts friction and resists corrosion—exactly what you want if you run suppressed or push high round counts.

Installation is straightforward: this barrel drops in without gunsmith work. It's a practical, affordable accuracy upgrade for shooters who demand match-grade precision from a duty-sized frame. Built and tested in Texas, CMC's barrels back their in-house production with meticulous QC inspection at every stage.

Key Features

• Drop-in compatible with Glock 19 Gen3 and Gen4—no gunsmith required
• Match Grade SAAMI chamber for consistent, reliable feeding and accuracy
• 6-groove rifling, 1:10 right-hand twist
• Double-honed bore finished to 12 RA maximum roughness for smooth operation
• Bronze Satin DLC coating with hBN bore and chamber treatment reduces friction and wear
• Straight fluted design for aesthetic appeal and light weight
• 416R stainless steel stress-relieved and hardened to specification
• Precision tolerances held to ±0.0005" bore and groove dimensions
• Manufactured and QC inspected in-house in Texas

Specifications

Frequently Asked Questions

Will this barrel fit my Glock 19 Gen3 or Gen4 without a gunsmith?

Yes. The CMC Match Grade barrel is a drop-in replacement. No gunsmith work or additional tools are required for installation.

What finish is on the barrel, and why does it matter?

The barrel features a Bronze Satin DLC (Diamond-Like Carbon) coating with hexagonal boron nitride (hBN) treatment applied to the bore and chamber. This finish reduces friction in the bore, resists corrosion, and is especially beneficial if you plan to shoot suppressed or run high round counts through the gun.

What makes this a match-grade barrel?

The barrel meets SAAMI Match Grade chamber specifications and is manufactured with precision tolerances held to ±0.0005" on bore and groove dimensions. The bore is double-honed to a maximum 12 RA roughness, and the chamber is finished to 16 RA. Every barrel is in-house manufactured and individually QC inspected in Texas to ensure consistency and accuracy.

Does this barrel come with suppressor threads?

No. This model (75524) does not include suppressor threading. CMC offers barrels with 1/2-28 RH suppressor threads as a separate option if you need that feature.