GLOCK, Inc.'s Slimline GLOCK 43X and GLOCK 48 are now available in the Modular Optic System (MOS) configuration. These slim 9X19 pistol models feature a micro-optic-ready factory-milled slide and ...

Glock introduced its Gen 4 G40 at the 2015 SHOT Show. ... (9.02 inches long, to be precise). It also came with the company’s brand-new Modular Optics System (MOS), ...

Available as a TALO distributor exclusive, the Glock 49 Gen5 blends the the longer G17 slide with the comfortably compact frame of the G19, and it also includes Glock's MOS optics-mounting system.

I get that comparing the Sig to the Glock G20 Gen4 isn’t the fairest comparison as the G20 Gen5 MOS has a feature set that is closer to the P320 X-Ten Comp. The Gen5 has a reversible magazine catch, ...