Magpul Industries M-LOK Thumb Shelf Black Polymer - Fits Octagonal Aluminum M-LOK Handguards

The Magpul M-LOK Thumb Shelf is a low-profile grip accessory that snaps into a single M-LOK slot on octagonal aluminum M-LOK handguards, giving the support-hand thumb a positive indexing point to better control the firearm during rapid fire and recoil management. Molded from high-strength polymer with a matte black finish, the shelf features a ribbed, curved top for improved thumb contact and a secure, non-slip feel. At just 1.55 in long and weighing only 0.4 oz with mounting hardware, it adds meaningful grip purchase without bulk or snag points. Installation requires only one M-LOK slot, and the included hardware makes it a simple, no-gunsmithing upgrade for rifle and carbine platforms.