Magpul Index Stop Features The Magpul Index Stop gives the support hand a consistent safe reference point on the handguard serving primarily as a stop for the index finger rather than a full barricade or vertical grip. This reduces the risk of muzzling the support hand during fast manipulation or transitions between shooting positions. Ridged texture on both the front and rear surfaces lets the shooter locate the stop by feel alone without needing to look down at the handguard. Its ambidextrous design means it works equally well whether the shooter runs the rifle right- or left-handed. Built to the same 1/8 inch protrusion dimensions as Magpul Type 2 M-LOK Rail Covers the Index Stop integrates seamlessly alongside them for a clean uniform look along the rail. It is molded from Magpul s proprietary polymer keeping the part lightweight at just half an ounce while still holding up to repeated use. The half-slot M-LOK mounting footprint uses minimal rail space leaving room for lights slings or other accessories. Compatible specifically with octagonal aluminum M-LOK handguards the Magpul Index Stop in Olive Drab Green is available for sale at GrabAGun. Magpul Index Stop Specifications Manufacturer: Magpul Model: Index Stop Type: Hand Stop Compatible Hosts: Octagonal Aluminum M-LOK Handguards Color: OD Green Material: Polymer Mount Type: M-LOK Length: 1.30 Weight: 0.50 oz Available At: GrabAGun