GLOCK Slimline MOS Accompanying Sheet

Sep 4, 2026

This document provides instructions and warnings for the GLOCK Slimline MOS pistol, specifically regarding the mounting of the GLOCK Cover Plate or an optical sight. It details the parts required, including TX10 Torx® screws and a TX10 Torx® screwdriver, and outlines the procedure for removing the cover plate and mounting an optical sight using M4x8 mm flat-headed screws. The document emphasizes the critical safety requirement to only fire the GLOCK MOS Pistol models with either the GLOCK Cover Plate or an Optical Sight correctly installed. It also includes a warning about potential damage or malfunction if the screw thread length exceeds 8 mm and a notice for GLOCK 43X and 48 models with MOS configuration, advising consultation with the optic manufacturer for compatibility as these models do not include adapter plates. A recommendation is made for periodic checks of cover plate or optic screws for tightness, alongside a California Proposition 65 warning regarding cancer and reproductive harm. The document uses symbolic pictures for illustration and is identified by Article Number 51077 and copyright © GLOCK 2020.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages2

Reading Time5 min

AccessFree to download

GLOCK Slimline MOS - Accompanying Sheet

Parts Required

Installation Instructions

Safety Warnings

FAQs

What are the essential safety requirements when using a GLOCK MOS Pistol?

It is critical to only fire GLOCK MOS Pistol models with either the GLOCK Cover Plate properly mounted or an Optical Sight installed. Firing without either can lead to safety issues.

What specific screws are needed to install the GLOCK Cover Plate?

Two TX10, M4x7.5 Torx® screws are required for fixing the GLOCK Cover Plate. These screws come with a drop of glue applied and should be the only ones used for this purpose.

What is the recommended screw length for mounting an optical sight on the GLOCK MOS slide?

When mounting an optical sight, it is recommended to use an M4x8 mm flat-headed screw. Using screws with a thread length exceeding 8 mm may cause damage to the weapon or lead to malfunctions.

Sep 4, 2026

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