Description
The CA19 OR is Combat Armory's answer to a question a lot of folks have been asking: why pay full boat for a Glock 19, then pay again to have the slide milled and the barrel swapped? This pistol shows up with the work already done. The slide is cut for RMR-footprint optics, the 4.49 inch stainless steel threaded barrel is ready for a suppressor or compensator, and fixed polymer sights are on board so you can shoot it the day you bring it home. It ships with a single 10-round Magpul magazine and feeds from standard Glock-pattern mags, so spares are cheap and everywhere.
A Frame Combat Armory Got Right
The grip on this one draws a lot of compliments, and for good reason. The glass nylon reinforced polymer frame has embedded stainless steel rails, a medium-aggressive texture that stays put with sweaty hands, and a high undercut on the trigger guard that lets you choke up for better recoil control. Forward landing pads give your support thumb a natural home, and the scalloped magazine release well makes dropping mags quick without shifting your grip. Plenty of people who have handled it say the ergonomics beat a stock Gen 3 frame.
CA19 OR Compatibility and Upgrades
Here is the real selling point for builders: this pistol is made to run Gen 3 Glock 19 OEM and aftermarket parts. Triggers, connectors, springs, sights, slides, barrels, the whole catalog is open to you. It also fits standard Glock 19 holsters and accepts rail-mounted lights and lasers on the integrated accessory rail, so you are not hunting for oddball gear.
Range Time With the CA19
At the bench, the 1:10 twist stainless barrel with conventional rifling handles common 115, 124, and 147 grain loads well, and owners consistently report smooth cycling across a range of ammo brands and magazines. Whether it becomes your suppressor host, your first red dot gun, or the base for a full custom build, the CA19 OR gives you a lot of platform to work with right out of the gate.
Key Specifications
- Manufacturer: Combat Armory
- Model: CA19 OR
- Manufacturer Part Number: CA19PSTHR-RMR10
- UPC: 789091896333
- Caliber: 9mm Luger
- Action: Striker Fired
- Capacity: 10+1
- Barrel Length: 4.49" Threaded
- Barrel Material: Stainless Steel, Conventional Rifling 1:10 Twist
- Slide: Serrated Steel, Matte Black, RMR Optic Cut
- Sights: Fixed Polymer
- Frame: Black Glass Nylon Reinforced Polymer with Accessory Rail
- Overall Length: 7.35"
- Safeties: Trigger, Firing Pin, Drop
- Parts Compatibility: Gen 3 Glock 19 OEM and Aftermarket
- Shipping Weight: 1.899 lbs
What’s Included
- Combat Armory CA19 OR pistol
- One 10-round Magpul magazine
- Cable lock
Frequently Asked Questions
Does the Combat Armory CA19 OR accept Glock parts and magazines?
Yes, that is one of its biggest draws. The CA19 is built to run Gen 3 Glock 19 OEM and aftermarket parts, including slides, barrels, triggers, and internals. It also feeds from standard Glock-pattern magazines, so Glock OEM, Magpul, and similar mags all work.
What optics fit the CA19 OR slide?
The slide is milled with a Trijicon RMR footprint cut, so RMR-pattern red dots mount directly. That covers a wide range of optics, including the RMR itself and other sights that share the same footprint. Standard-height polymer sights come installed for shooting without an optic.
What is the threaded barrel on the CA19 for?
The 4.49 inch stainless steel barrel extends past the slide with threading for muzzle devices, so you can attach a suppressor, compensator, or thread protector. Combat Armory's Glock 19 pattern threaded barrels use the common 1/2×28 pitch, which is the standard for most 9mm muzzle devices.
Will the CA19 fit holsters made for the Glock 19?
For the most part, yes. The frame and slide follow the Glock 19 pattern, and it is listed as compatible with Glock-style holsters and weapon lights. Just keep in mind the threaded barrel extends past the muzzle, so open-ended holsters are the way to go.





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