First Look: Glock 43X & 48 MOS Pistols

posted on August 25, 2020

New from Glock, Inc., are models of the Slimline Glock 43X and Glock 48 pistols, now available in the Modular Optic System (MOS) configuration. These easy-to-carry 9 mm pistol models feature a micro-optic-ready, factory-milled slide and a slim rail. 

Originally introduced in July of 2019, the G43X and G48 both feature a compact, Slimline frame with a 10-round magazine capacity. Now they are available in an optic-ready Slimline configuration with an MOS cutout and slim Glock mounting rail system. Because of their non-standard MOS footprint, the Slimline MOS models require specific mico-reflex optics such as the Shield RMSc or JP Enterprises JPoint

“Engineered with the Glock perfection promise, the two new models are the first Slimline pistols to offer an MOS option and are ideal for shooters everywhere,” said Shelby Lasater, Glock, Inc., Director of Marketing. “The versatility of the Slimline MOS models give them the adaptability and ease of use for concealed carry, target shooting, law enforcement, and competition which make them a new favorite.”

Reflex optics allow you to look through the reticle and focus on the target and alignment of the dot. Reflex sights on pistols are becoming increasingly more popular for home and self-defense because of their improved accuracy, quicker target acquisition and versatility and are an ideal option for confined space operations. The slim design allows the optical sight to be closer to the shooter’s line of sight and eliminates the need for high, back-up sights common to other mounting systems. Rather, these new Glock 43X and 48 models allow the use of the standard Glock sights in conjunction with the lens of the compact optic.

In addition to the MOS mount, both pistols feature a non-standard accessory rail that allows for a light to be attached with close alignment to the firearm’s bore with positioning in front of the trigger guard which allows the operator to maintain a two-handed grip. Both new models incorporate Gen5 Technologies such as the nDLC finish for extreme durability, a reversible magazine catch and a match-grade, Glock Marksman Barrel (GMB) for increased accuracy.

More information about the new G43X and G48 MOS from Glock can be found at


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