The Magpul M-LOK Thumb Shelf delivers a defined, repeatable reference point for your support-hand thumb on octagonal aluminum M-LOK handguards. Molded from Magpul’s proprietary polymer, this compact shelf uses only a single M-LOK slot while its ribbed, curved top helps keep your thumb planted through recoil for more confident muzzle control and faster follow-up shots.

This ambidextrous thumb shelf is ideal for shooters who want a consistent grip index on modern sporting rifles used for range work, training, or practical competition. Its low-profile design integrates cleanly with compatible octagonal aluminum forends, adding leverage when bracing against barriers without adding unnecessary bulk. Thoughtful ergonomics and durable construction reflect Magpul’s reputation for practical innovation and dependable firearm accessories.

• Manufacturer: Magpul
• Model: M-LOK Thumb Shelf
• Type: Handguard accessory / grip
• Material: Polymer
• Color: Modified coyote brown
• Compatibility: Octagonal aluminum M-LOK handguards, 1-slot
• Design: Ambidextrous with ribbed, curved top for improved thumb contact