The Magpul Industries MAG1566-MCB M-LOK Thumb Shelf enhances your shooting experience with its advanced design tailored for optimal muzzle control. Engineered for octagonal M-LOK handguards, this ambidextrous grip delivers superior support by minimizing muzzle rise and promoting stability, crucial for accurate shooting. Provides a Consistent Reference Point for Support-Hand Gives Shooter Leverage Against Muzzle Rise Ribbed, Curved Top for Improved Thumb Contact Ambidextrous Design Uses Only 1 M-LOK Slot Compatible with Octagonal Aluminum Handguards Only Elevate your firearm's performance with the robust Magpul M-LOK Thumb Shelf.