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The G43X already has a solid reputation as one of the better-balanced carry pistols in the Slimline category. It has a full-height grip that gives you a proper four-finger hold without adding a pinky extension, a 3.41-inch barrel that keeps things compact, and a frame slim enough that it disappears under most cover garments. What this COMP model does is take that foundation and build on it with a ported barrel and a custom Anime Blue Cerakote finish from Shark Coast Tactical — two things you'd normally have to source and pay for separately after the fact.
The ported barrel is the functional difference here. The ports redirect propellant gases upward as the bullet exits, which pushes the muzzle back down against the natural rise you get from recoil. On a compact 9mm like this, that translates to faster target reacquisition and a noticeably flatter shooting experience round to round. The Glock Marksman Barrel underneath those ports is the same match-grade GMB carried over from the Gen5 lineup, so you're not trading accuracy for the porting. Beyond that, the slide is cut for the MOS-K optic footprint, which supports direct mounting of the Holosun 407K, 507K, EPS Carry, and Shield RMSc without adapter plates. The Glock Slim Mounting Rail on the frame opens the door for a compact weapon light.
The Anime Blue Cerakote is the visual centerpiece of this model. Shark Coast Tactical, a Florida-based shop known for custom firearms builds and in-house gunsmithing work, handles the finish on these exclusive models. Cerakote as a coating is purpose-built for firearms — it's chemical and corrosion resistant, handles heat well, and holds up to the friction and holster wear that comes with regular carry better than most paint-based alternatives.
The Slimline frame checks the boxes that matter for everyday carry: it's just 1.10 inches wide, has a built-in beavertail for a high and consistent grip, a reversible magazine catch, and the short trigger distance that the Slimline series is known for. Two 10-round magazines are included. The unloaded weight sits right around 16 to 18 ounces depending on configuration, which keeps it comfortable for all-day wear. For anyone who wants to run an aftermarket 15-round Shield Arms magazine, the frame accommodates that without any modifications.
The MOS-K cut on this model is designed to directly accept optics using the Shield RMSc footprint, as well as the Holosun 407K, 507K, and EPS Carry without the need for adapter plates. This is an upgrade over the older standard MOS cut found on earlier 43X models. Always use the screws included with your optic or adapter to avoid fitment issues.
The ports vent gas upward as the bullet exits, which counteracts muzzle rise and helps bring the sights back on target more quickly between shots. On a compact 9mm, which tends to be snappier than a full-size, that reduction in muzzle flip makes a noticeable difference in how flat and controlled the gun shoots. It's especially useful during rapid follow-up shots.
Cerakote is a polymer-ceramic coating purpose-built for firearms, and it's well-regarded for its resistance to corrosion, chemicals, and the abrasion that comes with holster carry. The Anime Blue finish was applied by Shark Coast Tactical, a shop that specializes in custom firearm builds and Cerakote work. Properly cured Cerakote is generally more durable than factory paint finishes.
Holster compatibility depends on whether the holster accommodates the ported barrel and optic cut. The overall slide dimensions are the same as a standard 43X, but you'll want to verify with your specific holster maker that their design works with a ported barrel profile. Open-ended Kydex holsters typically handle this without issues.
Yes, this model ships with two 10-round magazines. The slim single-stack Glock magazines feature an orange high-visibility follower so you can quickly confirm round count. If you want more capacity, Shield Arms makes a 15-round magazine that fits the 43X frame without any modification.
The 43X platform has become one of the more popular carry choices precisely because it hits a practical middle ground — slim enough to conceal comfortably at 1.10 inches wide, but with a full-height grip that gives most people all four fingers on the gun. The ported barrel on this COMP model adds a performance benefit without meaningfully changing the size or concealability of the pistol.
| UPC | 810105519396 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | UX4350204FRN |
| Product Type | Striker Fired |
| Sights | Fixed Sights |
| Model | |
| Color | Blue |
| Capacity | 10 |
| Caliber/Gauge | 9mm |
| Barrel Length | 3.41" |
| Action |
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