Arisaka Defense Indexer for M-LOK



Product Description

The Arisaka Defense Indexer is a continuation of their low profile, minimal control accessories. It was developed due to end-user demand for an M-Lok version of the Finger Stop for Picatinny rails, and features a slim front-to-back profile and slight radius across both faces.

The Indexer can be used in a variety of ways, but the main intent is to place it between two fingers (usually index and middle). This typically places it further forward on the handguard, which also means it doesn’t get in the way when transitioning to kneeling or prone shooting positions, where most people move their support hand towards the rear. Used in this manner, the Indexer makes it much easier to pull the rifle into your shoulder and maintain control while shooting.

Additionally, the wider, flatter profile of the Indexer functions very well as a hand stop or barricade stop, and also works as a forward limit to prevent your fingers from slipping off shorter handguards onto a hot barrel or suppressor.

  • Height: 1.0″
  • Width: 0.58″
  • Length: 1.5″
  • Weight: 0.6 oz

The Indexer is CNC machined from 6061-T6 aluminum and MIL-A-8625 Type III hard coat anodized. Requires an IP25/T25 Torx wrench for installation (not included). Made in the USA.




Technical Information

Color / Pattern

Mounting Platform

Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit

Customer Reviews

Based on 8 reviews
Tim F.
Was the last piece of the puzzle.

This thing fucks!

Great hand stop

Love this for a PCC build. Solid and minimalistic.

James F.
Indexes like a pro

This Indexer indexes like no Indexer before. In my whole rolodex of Indexers, this M-LOK Indexer indexes more for my index finger then any other indexer I have used! Should do a great job making sure I can keep my index finger, and all the others with such a short barrel.

Nick E.
Best hand stop

The Arisaka hand stop takes up minimal space, is extremely sturdy and is comfortable to use. There is no better hand stop on the market.

Travis P.

Quality, Sleek, and Simple