The Magpul M-LOK Thumb Shelf delivers a simple, repeatable reference point for your support-hand thumb on octagonal aluminum M-LOK handguards. Molded from Magpul’s proprietary high-strength polymer, it features a ribbed, curved top surface that helps keep your thumb planted during recoil while occupying only a single M-LOK slot. The low-profile shape adds control without cluttering your handguard or snagging on gear.

This compact accessory is ideal for shooters who want more consistent muzzle control and faster follow-up shots from their carbine or rifle. Its ambidextrous design works equally well for left- or right-handed users and also serves as a stable contact point when bracing against a barrier. Whether you are refining your range setup or optimizing a competition build, the Thumb Shelf reflects Magpul’s focus on practical ergonomics and thoughtful design.

Key Features:

• Manufacturer: Magpul
• Model: M-LOK Thumb Shelf
• Type: M-LOK Handguard Accessory
• Material: Proprietary High-Strength Polymer
• Mounting System: Direct M-LOK, Single Slot
• Orientation: Ambidextrous
• Compatibility: Octagonal Aluminum M-LOK Handguards Only
• Finish Color: Black