CA19 Pistol RMR Threaded Barrel With Suppressor Height Polymer Sights Compatible With Gen 3 Glock 19 Parts

About this product

Important note before anything else: this listing is a complete, fireable pistol — not a barrel, muzzle device, or accessory. The name references parts compatibility because the CA19 is built as a Glock 19-pattern (Gen 3) platform, meaning it accepts Glock Gen 3 aftermarket components, but what you're buying here is a full frame-and-slide assembly ready to shoot, complete with an RMR-cut slide, a threaded barrel, and suppressor-height polymer sights.

What does "Glock 19-pattern" mean for this pistol?

Combat Armory built the CA19 to share the Glock 19's magazine wells, holster fit, and Gen 3 parts compatibility, so accessories, holsters, and aftermarket components designed for a Glock 19 Gen 3 generally work with this pistol as well. That gives owners a wide upgrade and customization path without being locked into a single manufacturer's proprietary parts ecosystem, while the pistol itself ships as a complete, ready-to-fire 9mm handgun with a 15+1 capacity.

What does the RMR cut and threaded barrel add?

The slide comes pre-milled for RMR-pattern red dot optics, so mounting a compatible reflex sight doesn't require sending the slide out for machining. The threaded barrel — reported at roughly 4 inches with 1:10 twist rifling — supports muzzle devices or a suppressor where legally permitted, and the suppressor-height polymer sights are specifically sized to co-witness through a red dot or clear a suppressor's bore, rather than sitting too low to see over either.

What's the frame and finish like?

The CA19 uses a black polymer frame with a Glock-style accessory rail, paired with a serrated matte-black steel slide and a stainless steel barrel. Ergonomic touches include aggressive frame stippling for grip, an undercut trigger guard for a higher grip position, and a more aggressive 1911-style grip angle compared to a stock Glock frame — small changes aimed at shooters who want a more custom feel without giving up Glock-pattern compatibility.

Is this a good option for a first Glock-pattern pistol or a build platform?

Because it ships as a complete pistol rather than a stripped frame or parts kit, it's a straightforward option for someone who wants Glock 19-style ergonomics and capacity at a lower price point than a factory Glock, with the added flexibility to swap in Gen 3-compatible parts down the road as budget allows. It's not a "build your own" kit — you receive a finished, fireable handgun — but the parts compatibility means future upgrades are simpler than with a fully proprietary design.

As a complete firearm, the CA19 ships to a licensed FFL dealer, not to your home address; you'll complete your background check and required paperwork there before taking possession. California buyers should confirm current compliance status for this model with their FFL before ordering.

What should buyers budget for beyond the pistol itself?

Since the CA19 ships as a complete pistol rather than a bare kit, most buyers won't need additional parts to get to the range, but anyone planning to run a red dot will still need to purchase a compatible RMR-pattern optic separately, since it isn't bundled with this listing. If you intend to use the threaded barrel with a suppressor, remember that suppressors require a separate NFA application, tax stamp, and approval process through the ATF before you can legally take possession — budget both the time and the additional cost into your plans if that's part of your goal for this pistol.