GlockStore Performance Custom Shop now offers a 10-day Optics program for the Glock 42, previously thought impossible to mill for optics. This program allows for the mounting of various micro red dot sights with a footprint compatible with the Holosun 507k, such as the Holosun EPS, Vortex Defender, RMR CC, and Shield RMSC. Due to the Glock 42's thinner slide and the safety plunger hole, traditional co-witnessing is not possible; instead, customers can opt for a combat cut with the dovetail in front of the optic or no iron sights at all. This service significantly enhances the carry capabilities of the compact .380 ACP pistol.
This video explains how to achieve co-witnessing with factory iron sights on a Glock 43X (non-MOS) by utilizing a 'combat cut' modification. This specialized milling allows the rear sight dovetail to be placed forward of the optic's glass, providing a lower one-fifth co-witness without needing suppressor-height sights. The GlockStore offers this service as part of their 10-day optics program.
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