Magpul® M-LOK® Index Stop

The Magpul M-LOK Index Stop is a compact indexing point designed for compatible aluminum M-LOK handguards. It provides a consistent reference point for the support hand, promotes repeatable hand placement, and occupies only half of an M-LOK slot, leaving more space for lights, switches, and other accessories.

Designed for Aluminum M-LOK Handguards

The Index Stop is intended for compatible octagonal aluminum M-LOK handguards. It is not compatible with polymer M-LOK handguards or handguards with wide, flat mounting surfaces. Its compact footprint requires only half of an M-LOK slot, maximizing available rail space for additional accessories.

Consistent Support-Hand Index

The Index Stop provides a tactile indexing point that helps position the support hand consistently while reducing the likelihood of the hand moving too far forward. Textured front and rear surfaces improve grip and control, while the low-profile design sits flush with Magpul M-LOK Type 2 Rail Covers for a seamless feel.

Compact and Durable Construction

Molded from high-strength polymer, the Index Stop combines durability with minimal weight. Its fully ambidextrous design can be installed in either orientation to suit individual shooting preferences. It measures approximately 33 mm in length and weighs approximately 14 g, including mounting hardware.

Features

• Occupies only half of an M-LOK slot
• Designed for compatible aluminum M-LOK handguards
• Provides a consistent support-hand index
• Textured front and rear surfaces
• Low-profile design compatible with Magpul M-LOK Type 2 Rail Covers
• Fully ambidextrous
• High-strength polymer construction