This adapter for the Power Custom stoning fixture maintains precise alignment for precision stoning. It features accurate, repeatable setup and is easily adjustable to allow variations in stoning angle for an exact, desired trigger pull weight. Notes:Used with the Power Series 1 Stoning fixture (743549) for Hammer and Sear workFeaturesAdapter features accurate and repeatable set upEasily adjustable to allow variations in stoning angle for exact, desired trigger pull weightPackage contains 1 adapter