Glock 43 slides — OEM and MOS optics-ready options for Glock’s Slimline platform, including the 43, 43X, and 48. The Slimline series is Glock’s answer to concealed carry: single-stack thin, easy to conceal, and available in optics-ready configurations. Whether you’re replacing a worn slide, adding a red dot to your carry gun, or building a custom Slimline pistol, you’ll find the right slide here.

Our inventory covers the major Slimline configurations: the Glock 43X OEM slide with the factory Silver PVD finish and standard iron sights; the Glock 43X MOS slide with an RMSc optic cut for direct mounting of micro red dots; and the Glock 48 OEM slide for the full-grip Slimline variant. The 43X and 48 share identical slide and barrel dimensions — the only difference is grip length.

The G43 and G43X are distinct platforms. The G43 is the original single-stack subcompact with a shorter slide and different recoil assembly. The G43X uses the longer G48-length slide with the shorter grip. Slides are not interchangeable between the G43 and G43X.

Every slide in this category is fit-tested before shipping and backed by our fitment warranty. Whether you need a stripped slide shell for a custom build or a complete assembly that’s ready to install and shoot, we’ve got you covered.

Not sure which Slimline slide fits your frame? G43, G43X, and G48 slides have distinct dimensions. The G43X and G48 slides are interchangeable (same dimensions, different grip frames). The G43 slide is not compatible with either. Check the product description or contact us before ordering and we’ll confirm fitment for you.