Sights for Glock 17 MOS

The Glock 17 MOS keeps the same sight dovetail width as the standard G17, but the sight sets here run taller - built to co-witness with a slide-mounted red dot, so the top of the front post lines up inside the optic's window as a built-in backup. That's a deliberate design, not an oversight: co-witness height means your irons still work as a functioning sight picture the instant the dot is off, out of battery, or simply not looked for. Running a standard (non-MOS) G17? Sights for Glock 17 is the collection you want - MOS height sights sit too tall for a slide with no optic mounted.

Co-witness and semi-adjustable options

The range here covers the ways MOS shooters run irons alongside a dot:

• Co-witness sights - fixed height, matched front and rear, for the most direct backup sight picture under an optic.
• Semi-adjustable co-witness sights - co-witness height with a windage-adjustable rear, for shooters who still want to fine-tune zero.
• Low sights - for MOS owners who plan to run the optic exclusively and want a lower-profile front and rear instead.

Illumination options include fiber optic and tritium from Angry Bear and Night Fision (both USA), and semi-adjustable fiber optic, white dot or luminescent sets from LPA (Italy).

This collection also carries a screwdriver sized for Glock front sights and a spare front sight retaining screw (2-pack) from Angry Bear - worth having on hand if you're installing or swapping sights yourself, since the factory screw is small and easy to misplace mid-install.

Mounting the red dot itself

The MOS cut takes an adapter plate, not a direct-mount optic - browse optics ready plates for Glock 17 MOS to match the factory cut to your red dot's footprint before fitting a co-witness sight set on top.

DISCLAIMER: "GLOCK" is a federally registered trademark of GLOCK, Inc. and is one of many trademarks registered by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither BITZU, s.r.o. d.b.a. Optics Spot nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of any "GLOCK" trademarks on this page is merely to advertise the sale of pistols, parts, components or accessories that are compatible with GLOCK pistols. For genuine GLOCK, Inc. and GLOCK Ges.m.b.H. products and parts visit www.glock.com.