Magpul M-LOK Thumb Shelf - OD Green

On a fully configured handguard, every slot is real estate. The Magpul M-LOK Thumb Shelf earns its one slot by actively improving muzzle control and giving your thumb a consistent reference point — without adding bulk, weight, or a significant profile beyond the handguard surface.

The Magpul M-LOK Thumb Shelf is an ambidextrous support-hand accessory that improves muzzle control through a defined thumb reference point, requiring only a single M-LOK slot.

One slot for a genuine muzzle control improvement is a good trade. The shelf positions your thumb against the muzzle rise impulse rather than letting it rest passively on the handguard surface. The ribbed, curved top maintains contact under recoil, and the ambidextrous form serves both right- and left-handed shooters without alteration. At 0.4 oz, it adds nothing meaningful to rifle balance.

Compatible with octagonal aluminum M-LOK handguards and forends. Requires one M-LOK slot. Not compatible with polymer M-LOK handguards, wide-surface handguards, or polymer forends.

Molded from Magpul's proprietary polymer. Measures 1.55 inches maximum length. Weighs 0.4 oz with hardware installed.

A practical addition to hunting rifles, patrol carbines, competition builds, or any platform where active muzzle control is wanted without giving up handguard space.

Magpul continues to set the standard for functional, USA-made shooting accessories trusted by military, law enforcement, and civilian shooters worldwide. Made in the USA.