Arisaka Defense Indexer for SIG LTAW, Black The Arisaka Defense Indexer is a black anodized handguard accessory for the SIG LTAW system. An indexer provides a tactile reference point, giving this accessory a defined hand-position reference on the named handguard interface. This version is identified by its SIG LTAW fit and black anodized finish. The named interface is the key compatibility detail, so the LTAW designation should remain part of the product selection rather than treating every Arisaka indexer as interchangeable. Key Features SIG LTAW fit: Made for the named SIG LTAW handguard interface. Black anodized finish: The specified color and surface finish for this version. Specifications Manufacturer: Arisaka Defense Product: Indexer Handguard fit: SIG LTAW Finish: Black anodized Shop the black Arisaka Defense Indexer for SIG LTAW at BattleHawk Armory.