The Glock 43X is a slim, single-stack 9mm pistol with a 3.4-inch barrel. This example carries a custom Shark Coast Customs C4 coating on the slide and frame, done in a peacock teal and blue color scheme. The slide is cut for an RMR-pattern red dot optic and the pistol holds 10+1 rounds. The pistol runs on Glock's standard striker-fired action with an internal trigger safety tab. 
 

Key Specifications 

• Brand: Glock 
• Model: 43X 
• Caliber: 9mm 
• Capacity: 10+1 rounds 
• Barrel Length: 3.4" 
• Finish: Shark Coast Customs C4 Peacock Teal/Blue 
• Action: Striker-Fired Semi-Automatic 
   

Detailed Features 

• RMR-compatible slide cut allows direct mounting of a red dot optic 
• Slim single-stack grip keeps the 9mm platform easy to conceal 
• Internal safety trigger tab is part of Glock's standard striker-fired system 
• Custom peacock teal and blue Cerakote finish covers the slide and frame 
• 10+1 capacity balances a compact grip with practical round count

The Glock 43X carries Glock's reputation for reliability into a slimmer, carry-focused package, and owners of the 43X consistently describe it as a gun that just runs, with few reports of malfunctions once broken in. The RMR-cut version adds appeal for shooters who want a red dot without sending the slide out for milling.

The single-stack grip is a big draw for concealment, sitting thinner against the body than double-stack compacts, though some owners with larger hands find the grip a bit short and add a pinky extension. Recoil is manageable for the caliber, but a few shooters note the short 3.4-inch barrel makes it snappier than a full-size 9mm.

On value and customization, Glock's aftermarket is enormous, so holsters, sights, and triggers are easy to find. Custom Cerakote finishes like the peacock teal and blue seen here are popular among owners who want a 43X that stands out while keeping the stock internals and reliability intact.