The frame has an integrated rail in front of the trigger guard. This allows mounting of accessories such as tactical lights and lasers. 

The all-black models G43X and G48 come with a nDLC finish. This finish provides the same tough, durable protection like the GLOCK Gen5-models. The nDLC finish increases protection against corrosion and scratching and improves the ability of the pistol to function in adverse conditions.

All GLOCK metal parts are subject to a surface treatment making them corrosion and salt water resistant.

To provide a different look and an additional tactile surface to do a fast press check before and after firing.

The frame of the slimline models has a built-in beavertail design, which allows the shooter to aquire a high and tight grip.

The durable and lightweight polymer frame absorbs recoil due to the dampening characteristics of the polymer. The slimline RTF was designed to enhance grip traction, without being too aggressive.

The 10 rounds magazine slim 01 has a specific single stack design to reduce its dimensions to a minimum. The orange follower allows the shooter to clearly see if there are any rounds left in the magazine or not. The metal insert is covered by a polymer coating as for all GLOCK magazines.

The trigger distance of these slimline pistols is reduced compared to other GLOCK models. The grip angle is equivalent to the larger pistols in the GLOCK lineup.

Three safeties disengage sequentially as the trigger is pulled and automatically reengage when the trigger is released. 
Same trigger pull for each shot - short trigger reset.

The dimensions of the standard GLOCK rear sights were reduced to fit the slim slide.

The GLOCK Marksman barrel (GMB) features enhanced barrel rifling based on the proven polygonal barrel design which delivers improved accuracy. 

The magazine catch of the compact slim frame is reversible to switch the catch to the left or right side of the pistol.

A fully functional slide stop lever stops the slide in the rearward position after having fired the last round in the magazine.

A visible and palpable indicator is located on the extractor.